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Re:The failure of self-checkout technology by CM30 on Wednesday January 17, 2024 @06:31AM (#39026369)
It feels like almost all the issues with self-checkout technology come from the attempts to minimise shoplifting, which don't even seem that effective at doing that. In theory, a system that let you scan products the same way checkout staff do without any weight checks or bagging area rules or other interruptions would be incredibly efficient. Especially if you could do things like scan the same product multiple times if you were buying multiple copies of it.

The problem is that companies don't want that, because they're worried they'd get robbed blind if they did. In a sense it reminds me of the problems with our travel systems; if there were no gates, no security checks, etc, then they'd probably be a joy to use. But people suck so they're not.

Re:The failure of self-checkout technology by thinker5555 on Wednesday January 17, 2024 @08:08AM (#39027117)
> It feels like almost all the issues with self-checkout technology come from the attempts to minimise shoplifting, which don't even seem that effective at doing that.

Agreed. And in some cases the issues almost feel like they're on purpose in order to drive people away from using the self checkouts.

For example, when I use self checkout at my local grocery store, I have to hit a button to tell it I want to use my own bag, and then put the bag in the bagging area so it can presumably weigh it, and a moment later it allows me to start scanning items and placing them inside.

That's fine, but the problem that I run into _every_ week is that the first bag works fine, but after that, when I hit the button to say I'm using another bag, once I place the bag in the bagging area, it flags me for putting unscanned items in the bagging area. It "lets it go" after a moment, but when I need to move on to bag #3, it complains again, stops, and forces me to wait while a store worker comes over and has to watch overhead video of me placing my empty bag in the bagging area for both bags 2 AND 3!

I have tried so many ways of being extra careful about how I'm placing the bag, but no matter what I do, it complains about every bag after the first one. I've tried leaving previous bags in the bagging area, I've tried removing them after each bag is filled, I've tried standing or moving differently, being quicker or slower about placing my bags, and no matter what, every other bag after it starts complaining, it stops and I have to wait for the store worker to verify and let me keep going. I've even tried just putting my bag on the floor and bagging items there, but then it complains after every 10 "unbagged" items since they're not hitting the scale in the bagging area, even if I hit the "don't bag this item" button after the scan.

While the whole thing is a major inconvenience, it's STILL better than waiting in a line for an actual cashier (and sometimes an additional bagger) who will feel the need to chat me up just because I'm standing in front of them, and inevitably not pack things into the bags the way that I want.

Re:The failure of self-checkout technology by whynotmaybe on Wednesday January 17, 2024 @08:23AM (#39027286)
I never use the "bag" function.

When I've scanned the first item, I put it in the bag that's outside the scale and put the bag with the item on the scale.

Re:The failure of self-checkout technology by yetihehe on Wednesday January 17, 2024 @09:36AM (#39028240)
Works for most light bags, many people use heavy reusable bags which can sometimes throw off weight of some items too much and it's a lottery then. Similarly I don't use "add X items at once" because they don't multiply weight error by X so for many items it sometimes do not work.
Re:The failure of self-checkout technology by Arrath on Wednesday January 17, 2024 @02:09PM (#39031995)
I just pile my junk on the scale and bag it up after I'm done with the transaction.
Re:The failure of self-checkout technology by o11c on Wednesday January 17, 2024 @11:12PM (#39037730)
This does mean you block the person behind you for much longer, but that's the store's problem not mine.
Re:The failure of self-checkout technology by vel0city on Thursday January 18, 2024 @09:21AM (#39041960)
If it means there's never an "unexpected item in bagging area" it probably overall reduces time.
Re:The failure of self-checkout technology by pimlottc on Thursday January 18, 2024 @10:22AM (#39042798)
I do this too, but most stores have plastic bag holders on the scale that clutter things put and make it harder to stack items before bagging.
Re:The failure of self-checkout technology by Arrath on Thursday January 18, 2024 @12:25PM (#39044588)
I imagine its regional, but where I'm at those are long gone. Now you gotta bring your own bags or pay for each of the ultra flimsy 'reusable' store brand bags.
Re:The failure of self-checkout technology by raverbashing on Wednesday January 17, 2024 @08:14AM (#39027179)
Yeah, as much as I like self-checkout it seems the bag logic is broken everywhere

I just scan everything and bag the stuff after payment

Re:The failure of self-checkout technology by Thlom on Wednesday January 17, 2024 @08:44AM (#39027556)
The first self-checkouts in Norway around 10 years ago implemented this weight thing to prevent shoplifting, but they dropped it pretty quick. Now there's just random spot checks (which can be frustrating enough when it happens). I encountered the weight again last year when vacationing in Denmark. So frustrating.
Re:The failure of self-checkout technology by Symbiote on Wednesday January 17, 2024 @08:51AM (#39027632)
I treat the self-checkout as if it has the "10 items or less" sign for an express checkout some supermarkets used to have. If I need multiple bags, it's probably not faster to use the self checkout.
Re:The failure of self-checkout technology by smileysteve on Wednesday January 17, 2024 @10:13AM (#39028787)
That works until your store has migrated 99% to self checkout. (which my grocery store has many hours of the day)
Re:The failure of self-checkout technology by ghaff on Wednesday January 17, 2024 @09:55AM (#39028527)
The stations are just not designed for checking out a lot of non-barcoded/awkward etc. items.
Re:The failure of self-checkout technology by Arrath on Wednesday January 17, 2024 @02:09PM (#39031987)
My bane back when I was a cashier and to this day thanks to self checkouts: weird shaped items that, while having a barcode, mean they'll never ever scan correctly. Powerade bottles were the worst for this, with the label going over a bunch of ridges in the bottle which made the label undulate like } and it was hopeless to try to scan the damn thing.
Re:The failure of self-checkout technology by ghaff on Wednesday January 17, 2024 @09:51AM (#39028486)
I'm not a particular fan of self-checkout for more than a handful of non-restricted bar-coded items. But, subject to that caveat I find that self-checkouts in general are far less fussy than they used to be about using your own bag etc.
Re:The failure of self-checkout technology by mejutoco on Wednesday January 17, 2024 @10:13AM (#39028798)
Unfortunately, my experience is different.

I have given up on using my big Patagonia bag at lidl, because it never works. Last time it required the cashier to override the warnings once after each item was placed in the bag.

Re:The failure of self-checkout technology by penjelly on Thursday January 18, 2024 @07:22AM (#39040846)
> while a store worker comes over and has to watch overhead video of me placing my empty bag in the bagging area for both bags 2 AND 3!

this is insane to me and if a manager was involved they should be fired. I dont think its reasonable to review video of a customer without probable cause they were stealing. In this case, the machines are so buggy (as you illustrated with your case) that a machine complaining is NOT probable cause. How to alienate your customers 101...

Re:The failure of self-checkout technology by k4rli on Wednesday January 17, 2024 @07:21AM (#39026729)
I just scan the barcodes on my phone and place everything in bag as I go along. Before leaving the store a QR on the POS kiosk display is scanned with the store phone app and I just need to select on POS if I will pay through app (pre-added card info) or physical card/cash. As simple as it gets.

No one checks the products. Occasional random checks happen but the checking frequency probably depends if past checks have found issues, so I get a bag check once a year max.

Re:The failure of self-checkout technology by soziawa on Wednesday January 17, 2024 @08:21AM (#39027251)
In Switzerland it's similar for one of the two major retailers. For the other one you can pay in the app without every going to a POS.
Re:The failure of self-checkout technology by htrp on Wednesday January 17, 2024 @08:06AM (#39027105)
Where are you and which store is this (general terms)?

I use the mobile phone checkout for one of the stores I go to. Every time when leaving, they manually inspect every single item in my cart.

Re:The failure of self-checkout technology by soziawa on Wednesday January 17, 2024 @08:26AM (#39027322)
In Switzerland the two major grocery stores have this system. You need to establish trust first, for the first few months you'll get more inspections. But I haven't been checked in years now.
Re:The failure of self-checkout technology by michaelmcdonald on Wednesday January 17, 2024 @08:50AM (#39027621)
The chain "Meijer" has this option. It slows down the process while you're actually finding the items in the store, but drastically speeds up the checkout process as the cashier only has to "verify" between 3-7 items. They just randomly grab them from whatever is on top of the cart, scan them, and away you go!
Re:The failure of self-checkout technology by engineer_22 on Wednesday January 17, 2024 @11:22AM (#39029800)
Walmart now has this. The first time I used it I was asked to allow a random screening of 3-7 items, but since then I have not had to deal with that. Just scan and go.
Re:The failure of self-checkout technology by lexszero_ on Wednesday January 17, 2024 @01:42PM (#39031662)
Here in Finland one retail chain (of the whole multitude of two that operate nationwide) is experimenting with scan-as-you-go approach in a few of their largest stores, and it's awesome. You scan your bonus/discount/client card at the terminal near the entrance, which then lets you take one of barcode scanners from a charging stand (it's only for customers that have said card, but most households have at least one already). Then you put your reusable shopping bag(s) into a cart or basket, and go collect your items and throw them straight into your bags after beeping with the scanner. The carts even have a nice holder for the scanner so your hands can stay free. When you're done, return the scanner to another charging stand near the exit, go to the self-checkout terminal and pay - it will match you using the same client card, which in my case is also linked to my primary bank account (yep, the retail chain runs its own bank, it's a standard Visa and works with GPay). If there are age-restricted items, it will take about 20 seconds for the store employee to come look at my ID and beep their card to allow the purchase to go through (there are also a few other common non-error cases when a human is called). Once in a blue moon they can do a spot check, beeping a few random items from the top of my bag, though that happened to me just twice in two years of shopping there weekly, one of the occasions was at 4AM when I was the only customer in the entire store.

The biggest convenience for me is that I only have to handle the items twice: when I pick them from the shelves, and when I unpack the bags at home. Going to any other store that doesn't have this system now feels like there is a lot of redundant and unergonomic operations.

Re:The failure of self-checkout technology by radarsat1 on Wednesday January 17, 2024 @06:36AM (#39026393)
That's exactly how it works in the Netherlands, you just scan your items and go. There are no weight checks and you can scan items more than once and edit and remove things from the list. Apart from getting a poorly executed random check sometimes (which is far from effective for the purpose of avoiding theft imho) it actually works really well.
Re:The failure of self-checkout technology by nicolas_t on Wednesday January 17, 2024 @08:05AM (#39027097)
This is the same here in Hong Kong. There are no weight checks and self checkouts are rather efficient. That said I barely use them mostly due to ideological reasons. I don't like to live in a society that completely does away with human contact and until society is really built around a UBI, I think cutting away unskilled jobs is not necessarily positive for society.
Re:The failure of self-checkout technology by Tor3 on Wednesday January 17, 2024 @07:13AM (#39026666)
Same around here. Self-checkouts is hugely successful. I'm much slower going through the scan procedure than the person working at the conveyor belt is.. but that's more than offset by the fact that there are a large number of self-checkout counters and I don't have to queue up (for the most part). The only time I use the old non-self-checkout counter is when there are no customers and the person at the checkout looks bored. Then I go there.
Re:The failure of self-checkout technology by dahfizz on Wednesday January 17, 2024 @06:55AM (#39026529)
Enjoy your homogenous, high trust society. We are all jealous.
Re:The failure of self-checkout technology by david-gpu on Wednesday January 17, 2024 @07:41AM (#39026918)
> Enjoy your homogenous, high trust society

"Homogeneous" in what way?

Because in my experience the sort of "homogeneity" that leads to high trust is that of wealth/income, and it requires a generous social net.

Re:The failure of self-checkout technology by Mountain_Skies on Wednesday January 17, 2024 @11:14AM (#39029676)
Most ways, as the research of Robert Putnam has documented well.

https://wcfia.harvard.edu/publications/downside-diversity

Re:The failure of self-checkout technology by david-gpu on Wednesday January 17, 2024 @12:28PM (#39030711)
I see no mention of whether they adjusted for age and urban vs rural settings. Dense metropolitan cores, where most economic activity happens, tend to be both younger and highly diverse ethnically as the jobs there attract migrant flows. It is unsurprising that younger people in dense metropolitan "the fewer people vote and the less they volunteer, the less they give to charity and work on community projects". That's what retired people do.

And to be completely transparent about where I'm coming from: I'm the father of two mixed-race children and all this talk of "homogeneous societies" reeks to me of plain old racism that will hurt my kids. And I grew up in one of those European "homogeneous" countries that right-leaning racists love to talk about, too.

Re:The failure of self-checkout technology by data_Is_Raciss on Thursday January 18, 2024 @08:48AM (#39041615)
You are the one who hurt your kids, and it’s on the rest of us now to stop you from also hurting society. Homogenous societies are a good thing and always have been.
Re:The failure of self-checkout technology by david-gpu on Thursday January 18, 2024 @01:05PM (#39045168)
> You are the one who hurt your kids, and it’s on the rest of us now to stop you from also hurting society. Homogenous societies are a good thing and always have been.

Thank you for supporting my thesis that praise for "homogeneous" societies is nothing but a dog whistle for plain old racism. I hope my children won't have to suffer people like you IRL.

Edit: It is hilarious that people like you praise places like the country where I was born and the country where my wife was born, but when we marry and have mixed-race children then suddenly you label our family as a menace to society.

Re:The failure of self-checkout technology by Slamidan on Friday January 19, 2024 @02:47PM (#39060148)
Noticing negative outcomes is racism.

What happened in those dense metropolitan cores was bad, and so the good people fled, happened over and over again and people didn't learn.

There's a reason Hong Kong can have extreme population density and low crime, and detroit and any where else filled with Obama's sons is simply a place where even progressives who say things like you do try to flee.

Re:The failure of self-checkout technology by j-krieger on Thursday January 18, 2024 @07:33AM (#39040941)
Turns out, like almost all things, homogeneity has positive aspects, too. Weirdly enough, this almost seems like forbidden knowledge depending on what political side you are on.

Also, as Denmark recently discovered, homogeneity is not simply dependent on a social safety net but exists within a symbiotic relationship with the latter.

Re:The failure of self-checkout technology by BobaFloutist on Thursday January 18, 2024 @11:02AM (#39043384)
One of the biggest hurdles to getting a social safety net past public perception in the US is that people are easily swayed against it if they're told that people of other races will benefit from it. A certain portion of the population automatically sorts any public benefit into a weird racial zero-sum game, where any support given to <people of that race> is a dollar specifically taken away from <people of my race>.

It's a big part of why we've historically had such a hard time implementing any sort of reasonable social benefits, and why the much lauded Nordic countries started cutting down on theirs the second they got a significant (racially different) refugee population.

Re:The failure of self-checkout technology by Slamidan on Friday January 19, 2024 @02:23PM (#39059830)
Its entirely rational, the net tax contribution of the other races in question other than asians is a net negative.

If you want open borders and are foolish enough to add "diversity" you cannot afford generous social safety systems.

People with genetic and cultural ties are more likely to sacrifice for one another, go figure, this has to be explained now to the progressive which is madenning. You cannot have nice things when you turn the social contract into a rental car.

Race matters, its why those nordic countries the left looks at longingly as example were made possible because they were homogenous, something they've been foolishly trying to undermine by following our example. Race matters, in homogenous countries a stranger is more related to their country men than the mixed race child. Why is Japan still functional, again, its homogenous, they are a cohesive people, and yes they do fat shame.

"Immigrants use more Welfare than Native populations: " https://twitter.com/AndrewQuackson/status/829594116929511424

"Asylum seekers and immigrants from Morocco and Horn of Africa costs the Dutch state €475,000-€625,000 per immigrant.

This can't be the best use of resources! Even if you are only interested in using the tax money to help non-Dutch people, you can save a life for ~€5,000." https://twitter.com/jonatanpallesen/status/17425869645769609...

"In the 18-24 age group, immigrants commit 90% of pimping crimes, 56% of **es, and 53% of robberies despite being only a small percentage of the population. The Italian government refuses to release data showing the percentage of these crimes committed specifically by Africans." https://archive.is/20230914033526/https://twitter.com/monito...

High grade human capital for import dried up after ww2, we are no longer importing Einstein, even worse in europe to be sure.

Re:The failure of self-checkout technology by Freak_NL on Wednesday January 17, 2024 @07:00AM (#39026572)
Nah, don't worry. Theft at self checkouts is turning into a national hobby¹.

1: https://www.nrc.nl/nieuws/2024/01/05/de-diefstalcijfers-stij...

Re:The failure of self-checkout technology by Pepe1vo on Wednesday January 17, 2024 @07:22AM (#39026737)
Every time I read one of these articles the naivety and tone-deafness from supermarkets over these self-checkouts amazes me.

"In order to make more money we made customers self-report their purchases during a cost-of-living crisis while we were booking record high profits and now these customers are _under reporting_ their purchases, how dare they!!"

They should've seen this coming from miles away.

Re:The failure of self-checkout technology by icoder on Wednesday January 17, 2024 @09:37AM (#39028268)
The way you phrase it (but maybe I get you wrong) suggests that the customers are somehow in their (moral if not lawful) right to do this because of previous policies from the supermarkets. They (supermarkets) may have been wrong, but so is stealing. They don't cancel each other out, nor do two wrongs become a right.

I'd say stealing is always a net negative effect for the whole.

But if you're saying that the entire context explains a lot of the behaviour, and could possibly be predicted, then yes I agree.

Re:The failure of self-checkout technology by arp242 on Wednesday January 17, 2024 @11:32AM (#39029958)
> booking record high profits

According to the opening paragraph of that article that's doesn't seem to be the case. €80 million in profit (with €100 million theft) is not all that much.

Re:The failure of self-checkout technology by owlninja on Wednesday January 17, 2024 @09:49AM (#39028461)
Sam's Club does this in the US and it is great.
Re:The failure of self-checkout technology by logicchains on Wednesday January 17, 2024 @10:00AM (#39028597)
Dubai also has self-checkout machines that don't require you to weigh anything, just scan and go, and it's an extremely heterogeneous, low-trust society. People are just very afraid of the police and being deported.
Re:The failure of self-checkout technology by Mountain_Skies on Wednesday January 17, 2024 @11:16AM (#39029706)
Seems to work similarly in Singapore. Low trust can work when there are harsh punishments for violations. But do we really want to live in that type of society?
Re:The failure of self-checkout technology by polski-g on Thursday January 18, 2024 @10:16AM (#39042693)
Do I want to live in a society in which criminals suffer the consequences of their crime? Is this a serious question?
Re:The failure of self-checkout technology by arp242 on Wednesday January 17, 2024 @11:33AM (#39029975)
Except it's neither homogenous nor high trust.
Re:The failure of self-checkout technology by alexanderchr on Wednesday January 17, 2024 @12:18PM (#39030564)
It's not exactly Japan-level high trust, but it is compared to most other countries in the world.
Re:The failure of self-checkout technology by arp242 on Wednesday January 17, 2024 @01:02PM (#39031171)
It really depends; in some areas it's exceedingly low-trust, almost paranoid. In some other areas it's probably not too bad.

Previous: https://news.ycombinator.com/item?id=36933489

I used to live in Indonesia and things are much more "high trust" in many aspects. On the other hand Indonesia also has a lot of problems with corruption and that sort of thing. "High trust/low trust" is too simplistic.

I don't have 200 other countries to compare it to, but by and large, Western countries are much less high-trust in many areas than people assume. This often becomes painfully obvious once you stray outside of the "standard happy path".

Re:The failure of self-checkout technology by netsharc on Wednesday January 17, 2024 @06:31PM (#39035163)
Whenever I see anyone use "homogeneous" in this context I always consider them a racist...

Meanwhile Netherlands elected an anti-immigration right-wing government in their last elections: https://time.com/6339173/dutch-election-results-geert-wilder...

Re:The failure of self-checkout technology by sime2009 on Thursday January 18, 2024 @02:21AM (#39038952)
23% did, just to be clear.
Re:The failure of self-checkout technology by j-krieger on Thursday January 18, 2024 @07:35AM (#39040970)
Being conservative on immigration (and in general) is not necessarily the product of racism.
Re:The failure of self-checkout technology by hgomersall on Wednesday January 17, 2024 @06:57AM (#39026544)
This exists to some extent in the UK with the self scan widgets. Waitrose had it before self checkouts. It works really well.
Re:The failure of self-checkout technology by podgietaru on Wednesday January 17, 2024 @08:31AM (#39027381)
That’s not the full story though because there are random spot checks and they’re very very annoying when they happen.
Re:The failure of self-checkout technology by Mo3 on Wednesday January 17, 2024 @08:32AM (#39027399)
Annoying? A person comes and scans a few of the items on the counter, then leaves again. If that is already annoying to you, you must live a very stressed life
Re:The failure of self-checkout technology by camgunz on Wednesday January 17, 2024 @10:23AM (#39028939)
It's super annoying. We'll often have groceries for the next few days, which includes a lot of baby food. So yeah, they're scanning like 40 items, and we have to repack the bag to not squash produce/bread and such.

Another related problem is that you physically can't leave the store unless you buy something and get a receipt to scan. You have to tailgate someone with a receipt, or hop the turnstyle, etc. Hope you're not in a wheelchair and change your mind / the store's out of what you were looking for!

Re:The failure of self-checkout technology by gilbertbw on Wednesday January 17, 2024 @12:04PM (#39030399)
In Waitrose (UK) stores at least this is not the case. When you are spot checked the staff member spot checks that a few things in your trolley have been scanned. They tend to check some higher value goods like alcohol.

Also those stores, at least where I live, have no physical barrier to exit.

Re:The failure of self-checkout technology by camgunz on Wednesday January 17, 2024 @03:57PM (#39033347)
Honestly why did you all have to Brexit. Would have loved to immigrate to the UK. Had to settle for NL.
Re:The failure of self-checkout technology by jacobp100 on Thursday January 18, 2024 @01:31PM (#39045624)
The scan as you go app is quite good until you get a rescan. The issue there is on the employees handsets. They never seem to be able to log in
Re:The failure of self-checkout technology by SamCritch on Wednesday January 17, 2024 @09:49AM (#39028454)
Yeah, I think the UX here in the Netherlands is much simpler and easier than in other countries. When I go to the UK (e.g. Tesco Express) I have to select a bagging option, there's no "no bag" option at the beginning of the transaction even though I'm only buying a litre of milk, then when I put the carton down in the bagging area it triggers an alarm saying a store assistant is coming, but they never do because they're too busy serving all the other customers at the regular checkout. So I give up and try a different checkout, blocking the one I've just tried to use for 2 minutes.

I posted about this on Linkedin too and got a few comments about the complexity in the UK, USA, France and elsewhere. https://www.linkedin.com/posts/samcritchley_it-hasnt-deliver...

Re:The failure of self-checkout technology by benoliver999 on Wednesday January 17, 2024 @10:15AM (#39028825)
99% of the time I use the 'weigh your own bag' option it asks someone to approve my bag. It's annoying.

Also, the 'bagging area' is on different sides in different shops. Also annoying.

Re:The failure of self-checkout technology by folmar on Wednesday January 17, 2024 @02:53PM (#39032571)
That 2 minutes is nice, in Poland a checkout station that was abandoned is blocked until an assistant notices it, so more like 30 minutes.
Re:The failure of self-checkout technology by Jochim on Friday January 19, 2024 @07:39AM (#39054739)
Weird, I've never seen a self checkout in the UK that doesn't provide the option to select no bag or key in 0 bags.
Re:The failure of self-checkout technology by camgunz on Wednesday January 17, 2024 @10:19AM (#39028889)
Yeah, but these checks are bonkers. Whenever we get one (maybe 2x a month) the store worker literally takes everything out of our bag and scans it again. It takes forever, and then we have to repack the bag. Don't get me wrong, I vastly prefer it to the scales in the US, but they're terrible and do nothing to prevent stealing (in fairness anecdata, but Jumbo reported they lost millions to stealing and I know multiple people who say they steal from Albert Heijn every time they go).
Re:The failure of self-checkout technology by arp242 on Wednesday January 17, 2024 @11:27AM (#39029870)
There is a lot of theft though, and since supermarkets typically have fairly small margins this is also really cutting in to profit margins. I'm not sure how it compares to the weigh-systems though.
Re:The failure of self-checkout technology by zilti on Wednesday January 17, 2024 @12:29PM (#39030721)
Same in Switzerland. I got so annoyed the first time I used a self-checkout in Germany.
Re:The failure of self-checkout technology by s1artibartfast on Thursday January 18, 2024 @12:23PM (#39044551)
I believe the difference is living in a high trust society.
Re:The failure of self-checkout technology by valzam on Wednesday January 17, 2024 @07:24AM (#39026753)
I have never understood the point of theft prevention at a self-checkout via the weight checks etc. If I want to steal something I just ... don't scan it? And keep it in my backpack. I don't see how the buggy weight checks serve any purpose other than annoying honest customers.
Re:The failure of self-checkout technology by bombcar on Wednesday January 17, 2024 @07:50AM (#39026981)
It’s a security feature sold to the stores against a possible but rare attack - barcode swapping.

It even occurs with human checkers but it’s quite rare (barcodes are fixed now, or the stickers destroy themselves if you try to remove them like at Goodwill).

The attack apparently would have you swap a barcode but still on camera scan it which I guess theoretically makes it harder to prosecute but I kinda doubt it.

It also helps catch misscans which is probably much much more common (someone scans an item, they thought it scanned, they put it in bagging area).

Re:The failure of self-checkout technology by HPsquared on Wednesday January 17, 2024 @08:01AM (#39027064)
It can also help the customer - it stops you scanning twice (and paying twice) for a single item.
Re:The failure of self-checkout technology by solardev on Wednesday January 17, 2024 @08:06AM (#39027107)
A pop-up could more easily do that without being annoying. "You already scanned Miracle Food. How many total are you buying? Just one / enter a number / I'll scan each one manually"
Re:The failure of self-checkout technology by Izkata on Wednesday January 17, 2024 @01:45PM (#39031704)
More likely it's for absent-minded customers who don't realize the item didn't scan. If there's a sudden weight without a new barcode scanned, the error message on the machines at the store I use say something like "unexpected weight, please remove item and scan again".
Re:The failure of self-checkout technology by Workaccount2 on Wednesday January 17, 2024 @03:41PM (#39033143)
In the early days of self checkout I remember being behind a woman who could not figure out how to scan things. She was basically presenting the items to the scanner like it was a photo shoot while getting frustrated that the machine only sometimes recognized what she was presenting to it.
Re:The failure of self-checkout technology by icoder on Wednesday January 17, 2024 @09:43AM (#39028359)
I only just learned about the concept of weight checks, I'd assume they weigh whatever you 'present' to have bought and compare that to what you scanned.

If you don't scan it and you put/keep it in your backpack, that's not different from doing the same but going through the cashier checkout right? They already had that problem, so if they keep that as it was but reduce the amount of personnel, that's a net positive?

Re:The failure of self-checkout technology by DanielHB on Wednesday January 17, 2024 @07:50AM (#39026980)
> In theory, a system that let you scan products the same way checkout staff do without any weight checks or bagging area rules or other interruptions would be incredibly efficient. Especially if you could do things like scan the same product multiple times if you were buying multiple copies of it.

The supermarkets in Sweden work like this, the only thing some of they do is random checks. In some chains you do need to sign up with your ID ahead of time though so they keep track if you get caught in a random check.

Re:The failure of self-checkout technology by HPsquared on Wednesday January 17, 2024 @07:59AM (#39027045)
The big supermarkets in the UK have a "scan as you shop" system. There is a portable scanner you take along with the trolley and scan each item as you put it in the trolley (directly into a bag - avoiding the bagging step).

You then just go to the self-checkout and pay for what you scanned.

They do spot checks at the checkout, especially for "new" customers. It's tied to your identity (need to scan a store card to unlock the scanner).

I think it's a timesaver... even though it takes a bit of time to scan each item with the portable scanner, you get to skip the "unload from trolley -> scan -> load into bags" at the checkout.

Re:The failure of self-checkout technology by DanielHB on Wednesday January 17, 2024 @08:57AM (#39027703)
yeah that is the case in Sweden as well, but you can also scan at checkout if you want. The random checks are the same for either, but there is no weight system or cameras or rfid or anything else besides the random checks to prevent theft
Re:The failure of self-checkout technology by bee_rider on Wednesday January 17, 2024 @09:22AM (#39028042)
We have that in some chains in the US. Stop and Shop, for example. It is much better.

I think it is not as popular in some areas of the US because some parts of the country have very low trust.

Re:The failure of self-checkout technology by icoder on Wednesday January 17, 2024 @09:45AM (#39028399)
Yeah some supermarkets in the Netherlands even let you do this with your phone (camera). Haven't used it for a while but even some years ago it worked quite good.
Re:The failure of self-checkout technology by HPsquared on Thursday January 18, 2024 @03:49PM (#39047484)
Phone could be quite good I suppose since it's tied to the person's identity.
Re:The failure of self-checkout technology by cameronh90 on Wednesday January 17, 2024 @06:38AM (#39026413)
In Waitrose (UK), they often don't have any scales, and as a result, there can just be one staff member watching over 20+ machines.

By comparison, the other day I was at Tesco and they had introduced these new large self-checkouts for trolleys (aka carts in US), but about halfway through my trolley, I started getting an error for every item I scanned. Turns out, the max weight for the scale was 20kg.

Re:The failure of self-checkout technology by jefftk on Wednesday January 17, 2024 @06:45AM (#39026462)
At the machines I've used in the US the way they deal with this is having you move your items off the scale into a bagging area (which is actually also a scale internally, though not one that needs to be officially calibrated).
Re:The failure of self-checkout technology by cameronh90 on Wednesday January 17, 2024 @07:06AM (#39026613)
When I say scale, I did mean the one in the bagging area, not the produce scale. Turns out they'd increased the size of the bagging area but not the scale underneath it, so every item was giving me "please place the item in the bagging area".
Re:The failure of self-checkout technology by dazc on Wednesday January 17, 2024 @09:45AM (#39028395)
Waitrose are in the process of updating the self-checkouts to full trolley-style machines. My local store is not that large but has 12 of these now in place of the previous 4 old-style machines.

Despite many claims that people don't like them it is surprising how they are almost always in full use.

Re:The failure of self-checkout technology by zilti on Wednesday January 17, 2024 @12:34PM (#39030798)
The thing with liking it or not is: do you dislike it strongly enough to wait an additional 10 minutes to be served at a traditional register instead?
Re:The failure of self-checkout technology by alpaca128 on Wednesday January 17, 2024 @06:44AM (#39026461)
> In theory, a system that let you scan products the same way checkout staff do without any weight checks or bagging area rules or other interruptions would be incredibly efficient

How would it be more efficient than a traditional checkout? There's no way the average person can match the speed of a cashier who does that every day, and at least the supermarkets I've visited don't have enough self checkout machines to balance that out.

Maybe it's just me but I genuinely don't get the point of self checkout. Are some shops so slow at reacting to long queues that it makes self checkout actually faster?

Re:The failure of self-checkout technology by rascul on Wednesday January 17, 2024 @07:02AM (#39026590)
> There's no way the average person can match the speed of a cashier who does that every day

Most of the time I use self checkout at the grocery store but when I don't the human takes longer than me, sometimes wants to have an annoying conversation, doesn't group things in bags, and uses way too many bags. Quicker and easier to just do it myself.

Re:The failure of self-checkout technology by Freak_NL on Wednesday January 17, 2024 @06:56AM (#39026539)
The point is cost savings for the supermarket. That's it. Some customer prefer them, but usually that is the effect of deliberately understaffing the remaining cash registers, or the customer being completely unable or unwilling to interact with strangers.

Supermarkets are now grudgingly admitting that self checkout systems cause a significant increase in loss due to theft, but that it is still cheaper than hiring actual staff for the registers.

In the Netherlands the current state of affairs in supermarkets with self checkout registers is that theft is on the up. People justify 'forgetting to scan an item' by the (perceived or actual) greed shown by supermarkets in terms of shrinkflation and the rising cost-of-living. Supermarkets did really well during the Covid-years, but customers didn't benefit from that in the slightest.

An additional problem is that the staff attending the self checkout registers are often young (because it is a position which would waste the skills of the more experienced employees), and they get bullied and berated by customers pissed off for getting selected for random (either actual or directed by the staff watching the cameras) checks.

Re:The failure of self-checkout technology by plg94 on Wednesday January 17, 2024 @08:49AM (#39027610)
It depends how the self-checkout is executed. In our one supermarket here in Germany (Globus) each customer gets a mobile scanner unit and you scan each item as you go through the store and put it in your cart. This has multiple advantages: You only have to touch each item once, not three times. You always know the accurate total price – no more counting in your head. And the actual checkout process is just the payment (plus the occasional random spot check), so there's almost never any lines. All in all makes for a much quicker and more relaxed shopping experience.

Unfortunately I don't know any numbers re theft, but it's still running 5 years later. Of course being in a suburban area helps.

Re:The failure of self-checkout technology by bombcar on Wednesday January 17, 2024 @07:56AM (#39027014)
I wonder how much theft would be mitigated if you implemented a quasi-random “free item” feature - tune it so there’s a chance the last item you scanned rings up free. Tune it to be a 2-5% discount at most, similar to coupons. Make the customer feel they won something.
Re:The failure of self-checkout technology by prewett on Wednesday January 17, 2024 @09:23AM (#39028052)
That sounds like how Star Market does things: everything is overpriced by a dollar compared to normal grocery stores (which unfortunately are a thirty minute drive from me), but they have rotating “sales” that are $1.00 off. I absolutely hate the store, because they aren’t fooling me, just overcharging me and then claiming I “saved” money.

I think this is how all Alberstons-owned stores work, because I’ve seen it an Randall’s and other places, but until now could avoid shopping there. I always wondered why Walmart said “everyday low prices”, because isn’t that normal? Well, apparently not.

Re:The failure of self-checkout technology by bombcar on Wednesday January 17, 2024 @10:22AM (#39028923)
The worst example of that I know of is Kohl's - everything there is insanely overpriced, but there is almost always a combination of sales, coupons, and sacrificial goats that gets you to normal or below normal pricing.

JC Penny famously tried to get out of that and it almost killed them: https://www.forbes.com/sites/panosmourdoukoutas/2017/02/24/a...

Walmart (and Costco, and Trader Joe's, and a few others) are so large that instead of making you dance around with coupons and such, they just tell the company to give them a discount and pass it on to the customer. An item at another store that needs a store app, coupon, etc, will just be dropped the same price at Walmart I've noticed.

(I hate the Kohl's style, as even when I stack coupons and get to 75% off on clearance, I still feel I missed something and got cheated. But apparently lots of shoppers really love that kind of "bargain hunt".)

Re:The failure of self-checkout technology by HPsquared on Wednesday January 17, 2024 @08:08AM (#39027126)
Traditional checkout takes two peoples' time: one scanning and the other waiting. Self-checkout only takes one person's time.

So it'd have to be twice as fast to break even in terms of "time spent".

Re:The failure of self-checkout technology by jen20 on Wednesday January 17, 2024 @08:33AM (#39027404)
What makes you think it wouldn’t be twice as fast, assuming the same number of items was being purchased? That certainly seemed to be the case at my local Whole Foods before Amazon ruined it.
Re:The failure of self-checkout technology by alpaca128 on Wednesday January 17, 2024 @10:37AM (#39029159)
In 99% of cases I don't have time to wait because the cashier is so fast I can barely keep up putting the scanned stuff back in the cart. If I do self checkout I have to do both of those things myself, meaning I am guaranteed to be slower.
Re:The failure of self-checkout technology by Tor3 on Wednesday January 17, 2024 @07:17AM (#39026699)
> "There's no way the average person can match the speed of a cashier who does that every day,"

Absolutely true, and not only that - the cashier has a conveyor belt while the self-checkout counter has a slightly inconvenient and much slower system.

But that's totally offset by the fact that there's typically only one or two cashiers while there may be ten or twenty self-service counters. I don't have to stand in line.

Re:The failure of self-checkout technology by petergrace on Wednesday January 17, 2024 @07:25AM (#39026763)
But having 1-2 cashiers is only the norm now because of self checkout. Prior to self checkout there used to be nearly all lanes staffed at our local grocery and wait times to checkout were low.
Re:The failure of self-checkout technology by Tor3 on Wednesday January 17, 2024 @07:31AM (#39026830)
Well, not at my local Coop. They have three cashier stations, nowadays one or two of them are manned (and the third person is free to assist customers where needed).

In my other living place, Japan, the MaxValu supermarket has, I think, around ten cashiers - not only that, those cashiers are super fast and use double-buffering for payment: You can pay while they're already busy with the next customer. But still - they have also introduced self-service. They still have nearly the same number of inhumanely fast human cashiers but they now also have lots of self-service desks (and a person there to assist anyone needing it).

Re:The failure of self-checkout technology by gilbertbw on Wednesday January 17, 2024 @12:12PM (#39030493)
My coop has the worst of all worlds. There used to be four self checkouts, but they removed two during covid, and another one after it developed a fault. So you have one self checkout, with a member of staff that has to juggle baby sitting it and manning a basket checkout. It would be much quicker if they just removed the last self checkout and had the staff member man the checkout full time.
Re:The failure of self-checkout technology by Drakim on Wednesday January 17, 2024 @06:59AM (#39026567)
At my local store there is 1 cashier with one of those conveyor belts machines, and 6 self-checkout machines. The cashier and the conveyor belt machine takes up about room as 3 of the self-checkout machines, and operates at about the same speed as one of the self-checkout machines. Plus obviously it's more expensive as you need to pay the wages of the person standing there just to grab your food and bring it to the infrared scanner one by one.

So my experience is the polar opposite of yours, self-checkout is just superior.

Re:The failure of self-checkout technology by dreamcompiler on Wednesday January 17, 2024 @06:58AM (#39026554)
It's about the cost of the checkout staff, not speed. Stores were told that if they bought 4 self-checkout kiosks they could eliminate 3 checkout staff (keeping 1 to monitor 4 kiosks).

What the vendors didn't say was that shrinkage would increase.

Re:The failure of self-checkout technology by julian_t on Wednesday January 17, 2024 @07:54AM (#39027008)
Yes, some shops are, and I lost count of the times when me, carrying a basket with a few items, was behind several other shoppers with huge trollies full to the brim. Pick a busy time and all the lanes are held up like this. Now we have self-checkouts for baskets only, and life works much better.

They still to have someone around, though, to satisfy the machine when it thinks that my newspaper is 25g too light, or I'm not old enough to buy alcohol-free beer (still haven't worked out the rationale for that one)

Re:The failure of self-checkout technology by KptMarchewa on Wednesday January 17, 2024 @06:55AM (#39026528)
Because you don't stand in the queue to the cashier and don't have to wait minutes till the buyer in the front finds all the spare change they need.
Re:The failure of self-checkout technology by Detrytus on Thursday January 18, 2024 @04:12PM (#39047812)
Instead you stay in the queue for the self check-out, and have to wait minutes till the buyer in the front figures out how to scan their items.
Re:The failure of self-checkout technology by KptMarchewa on Thursday January 18, 2024 @06:02PM (#39049159)
I've never seen a queue for a check out where regular queue wasn't 3x as long. To a single till no less.
Re:The failure of self-checkout technology by Moldoteck on Wednesday January 17, 2024 @08:15AM (#39027193)
best self checkout is when the store gives you a handheld device to scan products right b4 you put them in bags in your cart. When you approach the cashier, they just scan your qr code and prompt you to pay. After that you just take your bags and go... Even faster if the bags are from bicycle and you just put them in the back and go...
Re:The failure of self-checkout technology by tenebrisalietum on Wednesday January 17, 2024 @08:20AM (#39027248)
My neighbor works at a Walmart in the US and observes the following: They won't usually have more than 2 or 3 cashiers signed in at once. The cashiers are either elderly people who can't scan super fast or young people who don't care. So most people go to the self checkout unless they have a cart brimming full of stuff, and even then she sees more than a few go through the self checkout anyway.

Is this Walmart being cheap? Kinda, but I think the recent surge in living costs has made being a Walmart cashier an unattractive job. I think they have trouble keeping and retaining people who want to do the job and do it well. $15/hr. is nothing now, and the young people who are cashiers know that.

Re:The failure of self-checkout technology by kevincox on Thursday January 18, 2024 @09:51AM (#39042338)
> Is this Walmart being cheap

> $15/hr. is nothing now

I think you answered your own question. They are failing to hire cashiers because they aren't willing to pay enough. So yes, they are being cheap.

There is a huge potential market for cashiers. There is no shortage. There is only a shortage for the price that Walmart has decided is worth paying.

Re:The failure of self-checkout technology by Symbiote on Wednesday January 17, 2024 @08:56AM (#39027697)
Many grocery shops in European cities are fairly small, especially near or in the city centre. They might only have room for two checkouts, or one checkout and 3-6 self-checkouts.

If I'm only buying a few items, I find it faster to use the self checkout.

Re:The failure of self-checkout technology by bee_rider on Wednesday January 17, 2024 @09:26AM (#39028106)
> There's no way the average person can match the speed of a cashier who does that every day

Lots of people have at some point worked as cashiers, it isn’t some completely rare skill. Average person, sure they’ll be worse, but go up like one standard deviation in scanning skill and you can probably win. The cashier has also been there all day and can’t leave, so they aren’t in as much of a rush.

Re:The failure of self-checkout technology by alpaca128 on Wednesday January 17, 2024 @10:41AM (#39029224)
> The cashier has also been there all day and can’t leave, so they aren’t in as much of a rush

Some chains track the speed. Afaik Aldi sets 1 scanned item per second as the goal on average, and that's so fast some people literally complain that they can't keep up with putting the scanned items into their cart/bag.

No, there is no way a random person can match that if they don't have a lot of practice.

Re:The failure of self-checkout technology by bee_rider on Wednesday January 17, 2024 @11:48AM (#39030176)
Maybe Aldi has unusually high professional standards. When I worked in retail as a teenager there was an obvious split between the adults who had been working there for ages (and were exceptionally skilled and quick), and the high school/college students who were there for summer jobs.

The majority of the employees were in the latter group and we didn’t have any special skill. I mean, lots of people work in retail when they are teenagers, so on average the people who have done that in the past are more experienced that those who are currently doing it, right? Unless there’s a skew that is causing people to stick around longer in retail jobs as time goes by.

Re:The failure of self-checkout technology by inglor_cz on Wednesday January 17, 2024 @09:43AM (#39028372)
"How would it be more efficient than a traditional checkout? There's no way the average person can match the speed of a cashier who does that every day, and at least the supermarkets I've visited don't have enough self checkout machines to balance that out."

Where I live, the speed of a cashier is not the bottleneck. The bottleneck is waiting in the line after 3-4 people, especially if one of them has some issue "eh, I didn't want Foo, I wanted bar, let me run for it real quick".

Self-checkout parallizes the process, and if a single "Exception" is thrown, the other threads still run just fine.

Re:The failure of self-checkout technology by goosedragons on Wednesday January 17, 2024 @06:55AM (#39026530)
It's 100% that. One of the grocery stores near me has no weight checks or baggage area rules. I can easily bag my groceries into my backpack directly, at other stores my backpack is too heavy to be considered my bag and so if I want to do that the attendent has to override it so I never bother. Then since there's no weight check you never run into the "unexpected item in bagging area" or "please place item in bagging area" issues ever where the scale/item weight isn't acting as expected.
Re:The failure of self-checkout technology by bombcar on Wednesday January 17, 2024 @07:53AM (#39027003)
It’s strange here. The Walmart is tuned quite lax, very forgiving.

The local grocery store screams for an attendant if a fruit fly farts on the scale.

Re:The failure of self-checkout technology by spdif899 on Wednesday January 17, 2024 @08:40AM (#39027488)
In my area there are two grocery chains across the street from one another.

One has a self checkout that lets you bag your items however you want, has a wireless scanner for scanning at your convenience, and just has one polite attendant monitoring to help with issues or enter birthdate for alcohol.

The other has one that screams at you about unidentified items in the bagging area if you so much as look in its direction, and cameras jammed in your face with a screen wrapped in white LEDs to make it obvious you're being recorded.

Guess where I prefer to shop :-)

Re:The failure of self-checkout technology by Buttons840 on Wednesday January 17, 2024 @07:57AM (#39027022)
Sam's Club in my location is like this. Their self-checkouts are a computer screen with a mobile scan gun. You pick up the scan gun and scan all the items in your cart however you want. Then you pay, then someone checks 2 or 3 items randomly on the way out to ensure they are on the receipt.

People are saying the same can be done with an app, but I don't want to install another app.

Re:The failure of self-checkout technology by Buttons840 on Wednesday January 17, 2024 @10:56AM (#39029427)
Oh, and the person who checks receipts isn't just casually looking. The person checking receipts randomly scans a few items in your cart and then scans your receipt and the computer tells them if anything they scanned in your cart is not on the receipt, so it's a legit check, and it's fast. The whole thing takes about 15 seconds per cart, and if there is a big line they have the option of just letting people go without getting checked, so I've never had to wait.
Re:The failure of self-checkout technology by ddmf on Wednesday January 17, 2024 @06:37AM (#39026406)
Yes, exactly my thoughts - and they seem to use lower spec hardware leading to a perceivable delay between scanning -> putting on to weighing station -> able to scan next product.

Unless this is as designed too, for whatever reason, but this is what stops me from using them as I get frustrated.

The other thing that stops me from using them specifically in Lidl is that you cannot put a hazelnut croissant and an almond croissant in the same paper bag unless you take one out before you put it to weigh.

Re:The failure of self-checkout technology by CM30 on Wednesday January 17, 2024 @07:00AM (#39026573)
That's another good point. Self checkout machines are likely designed with lower specs in mind due to shops needing to either needing to have more of them (since there are often only 1 or 2 regular checkouts compared to 10+ self checkouts) or because they feel the expense of a better touch screen/recognition system is better justified if it's for a system the staff are using rather than the general public.
Re:The failure of self-checkout technology by mjbeswick on Wednesday January 17, 2024 @11:31AM (#39029940)
I work for a big UK supermarket as a developer working on their self checkout software. The tills have better specs than you would expect, as they are running 30 or so containers using Docker. They are not cheap!
Re:The failure of self-checkout technology by Mashimo on Wednesday January 17, 2024 @06:43AM (#39026453)
> In theory, a system that let you scan products the same way checkout staff do without any weight checks or bagging area rules or other interruptions would be incredibly efficient.

I think coop/365discount has that. You scan the items with a mobile phone app while taking them of the shelf. You just show the digital receipt to the cashier while jumping the queue.

Re:The failure of self-checkout technology by rcxdude on Wednesday January 17, 2024 @06:58AM (#39026553)
My experience with those is again they are ruined by overzealous anti-theft measures. Someone needs to come in and scan random items, which means you can't pack as you go, and it doesn't seem to let up even when it's tied to a loyalty card so they know you've used it before. After the system said the whole shop needed re-scanning, completely obviating the advantages, I've just stopped using it.
Re:The failure of self-checkout technology by slfnflctd on Wednesday January 17, 2024 @06:41AM (#39026428)
> scan the same product multiple times if you were buying multiple copies of it

My local Walmart allows this. Not sure what the impact on their 'shrink' is, but they must've decided it was worth it to keep lines moving. It's a very busy store.

Re:The failure of self-checkout technology by bombcar on Wednesday January 17, 2024 @07:59AM (#39027040)
It seems to be a setting the manager can choose to change. Some Walmarts near me basically seem to have the scale off (a ten pound unexpected item doesn’t even phase it) and others seem tuned quite narrow.

I wouldn’t be surprised if they could change it based on time of day. And changing it based on rewards card or loyalty would also seem to be possible.

Re:The failure of self-checkout technology by mc32 on Wednesday January 17, 2024 @08:35AM (#39027426)
Self-checkout relies on high trust. There are places where this works and shrinkage is manageable, but that seems to be higher income areas.

So it works in Norway or Japan, but put this in Indonesia or Honduras or even in small city USA and it’ll run into problems. It can work in areas of larger cities where most of the clientele are high income, but it’s bound to fail in most other areas.

Re:The failure of self-checkout technology by jtbayly on Wednesday January 17, 2024 @09:12AM (#39027898)
I disagree. The majority of the problems that I run into with self-checkout are related to not being able to buy items I picked up off the shelf like Mucinex or children's cough syrup or alcohol without getting an employee to check me out... at self checkout.

What's the point of "self" checkout if somebody is required—not by failure of the system but by rules—to come help me several times during the process?

Edit: at least with alcohol I know it’s coming. But it feels like every time I try to use self-checkout I’m foiled by surprise rules about particular items.

Re:The failure of self-checkout technology by MetaWhirledPeas on Wednesday January 17, 2024 @09:51AM (#39028493)
> What's the point of "self" checkout if somebody is required—not by failure of the system but by rules—to come help me several times during the process?

In my nearby Walmart they have a dozen or more self-checkout stations which only require a few staff in total. Most people don't need assistance.

Re:The failure of self-checkout technology by Izkata on Wednesday January 17, 2024 @09:58AM (#39028574)
Yeah, mine has 1 person overlooking 8 self-checkouts, and most of the time they're standing there doing nothing. I've only needed help like 5 times in several years, when the scale messed up.
Re:The failure of self-checkout technology by toyg on Wednesday January 17, 2024 @10:20AM (#39028896)
This seems easily fixed: just ask the consumer to show a driver license or other accepted ID, with some software validating whether it is legit. It will still be slower than a regular cashier judging your full beard and receding earline, but it would remove most human oversight.

Obviously there is a risk of illegally selling items to minors with fake documents, but I think that's fixable too. Already, in my local UK supermarket there are cameras on each checkout station, which I guess go to some bored reviewer; so you could just alert the guy "hey, customer X gave us a valid license" and assume that he'll react if he can't see a realistic amount of wrinkles.

Re:The failure of self-checkout technology by stronglikedan on Wednesday January 17, 2024 @11:11AM (#39029641)
Because people will then bitch and moan about how they're being recorded and their PI is being captured. The former is likely already happening, but people would still complain since it would be apparent. Both issues would be ephemeral if it's a human checking it.
Re:The failure of self-checkout technology by toyg on Wednesday January 17, 2024 @11:30AM (#39029923)
As I mentioned, we're already being recorded, so that's not much of an objection.

On PI, I agree that there is a qualitative difference between a cashier and a machine if you assume, as most people do, that the cashier will not remember private details. This can be fixed with industry-wide agreements to not store such data, in the same way as merchants don't store your full credit card details. You could even allow people to bypass the check if a valid identity is registered against their store-issued fidelity card.

Honestly, the only hard problem is localization. At the moment you can sell more or less the same automated till to UK supermarkets, US supermarkets, or EU supermarkets; but document-checking code will have to be heavily localized. Still, EU driving licenses are already similar on the entire continent, and that's quite a critical mass one could hit. I would be surprised if manufacturers weren't already developing this feature.

Re:The failure of self-checkout technology by ProllyInfamous on Wednesday January 17, 2024 @06:39PM (#39035223)
I use my US Passport for restricted-age item purchases (or ID at a bar), simply because it is not trackable and does not list my location/residence upon it.

Although I'm way beyond the point of caring about demographic profiling, I still don't want my home address to be available to everybody dealing with a simple purchase (although this perspective is probably greatly atypical on account of being a survivor of CSA).

Re:The failure of self-checkout technology by gremlinunderway on Wednesday January 17, 2024 @07:15PM (#39035588)
it's not "bitching and moaning" to be concerned about the over collection and exploitation of surveillance capitalism.
Re:The failure of self-checkout technology by mjbeswick on Wednesday January 17, 2024 @11:24AM (#39029837)
This is more a issue with the current legislation rather than a technical one.
Re:The failure of self-checkout technology by jtbayly on Wednesday January 17, 2024 @01:59PM (#39031869)
But it was the store that decided to pretend I could self-checkout when I actually can't.
Re:The failure of self-checkout technology by jrwoodruff on Wednesday January 17, 2024 @10:00AM (#39028605)
Definitely a yes-and scenario here. I was a cashier, I'm good at finding and scanning bar codes and PLU lookups. I was a damn fast cashier. That's impossible in a self checkout. And then you get carded for a can of spray paint, and the one attendant for 8 machines has three people with blinking lights. On top of that, most of these self-checkouts are not designed to handle a full cart of groceries, but also why do I want to do the work of ringing up and bagging a full cart of groceries by myself?

For the most part, in practice there's little or no advantage for me, the consumer with a cart full of groceries.

One exception was 2003-era Martins in Virginia - Walk in, grab a cart that had bags attached to the front, grab a portable scan gun from it's charging dock. Scan and bag as you shop, dock the gun to the checkout register, show the attendant my id if needed, pay, and I'm done. No unloading and reloading the cart, no fiddling with plu lookups, fumbling with bags, etc. It was actually glorious, but relies on trusting your customers. Corporate stores seem to trust me even less than I trust them.

I'm somewhat ok with these things as a secondary 10-items-or-less option. But for the love of god staff enough cashiers to handle the grocery-shopping-Sunday crowds.

Re:The failure of self-checkout technology by johnmaguire on Wednesday January 17, 2024 @01:10PM (#39031272)
> Walk in, grab a cart that had bags attached to the front, grab a portable scan gun from it's charging dock. Scan and bag as you shop, dock the gun to the checkout register, show the attendant my id if needed, pay, and I'm done.

They were doing this in a few Michigan Krogers within the last few years. I think they ended the program though.

Re:The failure of self-checkout technology by magnuznilzzon on Thursday January 18, 2024 @02:51PM (#39046705)
That's what we have in Sweden. It is really nice, unless you get a check on leaving the store.
Re:The failure of self-checkout technology by Slamidan on Friday January 19, 2024 @02:31PM (#39059938)
You haven't seen many of the slow cashiers at walmart then.

I was a fast cashier as a teenager but its no longer a job for teenagers in many places, its broken people barely there.

The fast check out is far more than 8 machines in half decent areas, maybe double that and I can get out of there in record time.

I'd rather handle it myself than stand in line.

High trust scan and bag won't work in a low trust diverse society, let alone one where some groups are now entitled to theft.

Re:The failure of self-checkout technology by PhasmaFelis on Wednesday January 17, 2024 @09:56AM (#39028544)
My favorite is when the system says "help is on the way" and then very obviously does nothing whatsoever to notify the attendant. I have to catch their eye myself every single time.
Re:The failure of self-checkout technology by chankstein38 on Wednesday January 17, 2024 @10:15AM (#39028822)
This happened to me at the store last night! I tried to weigh something and the scale was mad so it locked up the whole process (dialog on the screen saying "Scale needs reset. Help is on the way!" and no ability to scan the rest of my stuff) then just sat there. I turned to the attendant and said "Oh it didn't even tell me you needed help"

Like wtf. At the very least let me continue scanning the rest of my groceries so I can be done once this person helps me instead of still just 2 scans in..

Re:The failure of self-checkout technology by BobaFloutist on Thursday January 18, 2024 @10:57AM (#39043320)
I think the light above you changes to blinking red, which they're expected to notice on their own but often don't.
Re:The failure of self-checkout technology by d1sxeyes on Wednesday January 17, 2024 @01:23PM (#39031437)
I always gamble and scan any alcohol or age restricted items first. About half of the time, it throws an alert and flashes but lets me continue scanning, it just won’t let me complete and pay until someone has come over and approved.

For some reason though, some idiot designer who never actually thought about how these would be used in reality, decided to make it so that the other half of the time it immediately stops all scanning until someone comes to fix it.

In the first case, basically I waste no time. In the second, I lose however long it takes for the cashier to come.

Re:The failure of self-checkout technology by pcthrowaway on Wednesday January 17, 2024 @05:15PM (#39034322)
If you scan the alcohol first, you can then move over to another checkout and proceed with the rest of your items if you need to wait for assistance for the alcohol
Re:The failure of self-checkout technology by d1sxeyes on Thursday January 18, 2024 @07:10AM (#39040770)
Thanks for the tip—never tried it, but it sounds solid!
Re:The failure of self-checkout technology by jon889 on Thursday January 18, 2024 @08:01AM (#39041157)
Why don't you just scan the alcohol last then?
Re:The failure of self-checkout technology by kevincox on Thursday January 18, 2024 @08:12AM (#39041245)
Because you still need to wait for the attendant to come. But you have no chance of scanning other items in parallel. (Assuming you don't know if this store will block scanning)

It is always optimal to scan these first. You have two cases:

Blocking: scan 1 + wait for attendant + scan rest

Non-blocking: scan 1 + max( wait for attendant, scan rest)

The first case is never shorter than the second case.

Re:The failure of self-checkout technology by throw1234651234 on Thursday January 18, 2024 @08:47AM (#39041609)
^ This post is just in case you forgot you were on hacker news.
Re:The failure of self-checkout technology by d1sxeyes on Thursday January 18, 2024 @10:23AM (#39042818)
I agree it's a beautifully crafted response, and have nothing to add, it's exactly what my point was.
Re:The failure of self-checkout technology by bluescrn on Wednesday January 17, 2024 @04:09PM (#39033489)
The first hurdle with some self checkouts is before you even scan an item: Bags!

If you've brought your own bag and it weighs more than the mass of a few protons, the system assumes you're trying to steal something, and a human has to intervene before you can even get started.

And then they have to come back almost immediately to deal with age-restricted items or other glitches.

Re:The failure of self-checkout technology by mr_toad on Wednesday January 17, 2024 @09:42PM (#39036908)
God forbid you have more than one bag, because that totally confuses the system.
Re:The failure of self-checkout technology by kevincox on Thursday January 18, 2024 @08:13AM (#39041250)
Or that not all of your bags fit on the scale.
Re:The failure of self-checkout technology by pimlottc on Thursday January 18, 2024 @10:17AM (#39042705)
One workaround is to delay bagging (in your own bags) until after checkout, when you can just ignore its complaints. But the downside is having to awkwardly tetris your scanned items around the stupid plastic bag holders that take up half the bagging area...
Re:The failure of self-checkout technology by themadturk on Thursday January 18, 2024 @07:10PM (#39049875)
Oh my gosh, this is the bane of my shopping existence. Fred Meyer (Kroger) self scan registers are absolutely henpecking, pushy nannies. Did you put a bag on the scale? Did you put another bag on the scale? Please put your item in the bagging area. Please take all your purchased items. Over and over.
Re:The failure of self-checkout technology by throwaway2037 on Wednesday January 17, 2024 @09:19AM (#39027982)
I have used multiple self-checkout stations in the United States that weigh items. If you add two cans instead of one into your bag, the computer terminal will inquire about it.

And security: You only need a single person standing there to scary away 95% of shoplifters.

I watched a YouTube video from the channel "Not Just Bikes" about grocery shopping in Amsterdam, Netherlands showed a supermarket where you carry the "pricing gun/lazer" with you and "beep" each item as it enters your basket. I have no idea how they reduce shoplifting. Can anyone comment?

Re:The failure of self-checkout technology by Goz3rr on Wednesday January 17, 2024 @09:28AM (#39028134)
You can get randomly selected upon checkout where they will sample a few items from your bag, and if it finds a discrepancy they will rescan every item you have.

These hand held scanners have been a thing for over 10 years, way before the current iteration of self checkout stations. They continue to exist side by side with self checkout stations at supermarkets mainly.

It also should be noted that I have not seen a single self checkout station in the Netherlands that puts restrictions on how you scan your items. It doesn't care about weight and in what order you scan and put items into your bag or if you just keep holding the items, and I never have any issues with this system breaking or complaining about anything.

Re:The failure of self-checkout technology by nopurpose on Wednesday January 17, 2024 @09:24AM (#39028064)
Scan as you shop minimises shoplifting by requiring random spot checks. When you about to checkout, person comes and re-scans few items in your bags, if all were scanned you are good to go.
Re:The failure of self-checkout technology by bee_rider on Wednesday January 17, 2024 @09:32AM (#39028199)
We have that in some places in the US as well. Stop and Shop has little mobile scanners or apparently you can use an App instead. They say they might randomly check your bags when you leave, but it only happened to me once.
Re:The failure of self-checkout technology by philwelch on Wednesday January 17, 2024 @11:11PM (#39037719)
HEB has those now. They also do a weight check but they just weigh your entire cart at the end.
Re:The failure of self-checkout technology by afavour on Wednesday January 17, 2024 @09:59AM (#39028592)
IMO it's exactly this. Back when I was a teenager I worked at a supermarket and was able to scan a basket of shopping incredibly quickly. But the self checkout machines have so many pauses and errors that it's impossible to do anything at speed.
Re:The failure of self-checkout technology by engineer_22 on Wednesday January 17, 2024 @11:26AM (#39029859)
At Walmart, where I often shop, they have an overhead camera watching to make sure every item gets beeped. Sometimes I get stopped for that. Maybe that system is the bottleneck to faster scanning, or maybe they want to try to avoid double-beeping items and pissing off their customers so they set up a debounce. It would be great if stores were more open about their implementation.
Re:The failure of self-checkout technology by JoeAltmaier on Wednesday January 17, 2024 @10:00AM (#39028598)
The small Target downtown in the college town I live by, has only self-checkout. No human beings at all.

Further, my contact in the Target data center says the scales are disable (too many problems) and the camera showing you on the little screen over the kiosk, doesn't go anywhere but that screen.

So it's working for them, so far. You'd expect maybe more shoplifting in a college town, lots of poor students under strain and so on. Still the place is thriving.

Re:The failure of self-checkout technology by tristor on Wednesday January 17, 2024 @10:22AM (#39028920)
> You'd expect maybe more shoplifting in a college town, lots of poor students under strain and so on. Still the place is thriving.

Most data on the issue of shoplifting in the industry show that the people who shoplift are not ones doing it out of necessity (e.g. they're poor and can't afford those items), most shoplifting is done out of intention and not necessity. This includes categories like underaged people stealing items that are age-restricted, or people stealing items that cause shame to purchase (like condoms, pregnancy tests, et al), as well as the now commonplace problem of shoplifting gangs in the US who steal en masse to list items via Amazon Marketplace, eBay, Facebook Marketplace, and other online markets. People who are productive adults in society very very rarely shoplift, and in the cases that they do it because of mental issues, like kleptomania.

Re:The failure of self-checkout technology by Kuraj on Wednesday January 17, 2024 @11:19AM (#39029754)
This has been my experience. Rossmann does not do weight checks and using theirs is a breeze.
Re:The failure of self-checkout technology by bigbuppo on Wednesday January 17, 2024 @01:02PM (#39031178)
Companies want insurance to pay for their losses, and it turns out the only thing the videos find on self-checkout stands is that customers are frustrated that the machine is calling them a thief, when the shoplifters, big surprise, don't stand around in line for 15 minutes to walk out the door without paying.

The loss prevention person at the door is more likely to find items you left behind than to stop a shoplifter, but insurance demands it.

And the false positives on those little loss control tags is so high that most of the time workers aren't even going to look your direction if something sets it off. Once again, this is all crap required by insurance.

Shoplifters don't care about any of this. They just grab what they want and leave.

Re:The failure of self-checkout technology by j-krieger on Thursday January 18, 2024 @07:31AM (#39040929)
Do retailers really have insurance for loss and theft? I thought they'd just factor it into pricing.
Re:The failure of self-checkout technology by timabdulla on Thursday January 18, 2024 @07:59AM (#39041142)
Highly doubt it. You can't insure the inevitable.
Re:The failure of self-checkout technology by johngladtj on Thursday January 18, 2024 @08:12AM (#39041238)
Sure you can, it just costs more than taking the loss
Re:The failure of self-checkout technology by spicybbq on Thursday January 18, 2024 @09:07AM (#39041803)
I work for a retailer and we certainly do not use a third party insurer, and I don't see why any other consumer retailer selling inexpensive merchandise would use insurance. It is priced in.

In fact, we use RFID tracking to know when goods are stolen, not to save money, not to catch shoplifters, but to improve inventory management and ensure that we get a replacement item on the shelf to avoid losing sales.

Re:The failure of self-checkout technology by j-krieger on Friday January 19, 2024 @05:36AM (#39053872)
Yeah, I figured as much. So the above commenter was just talking out of their ass.
Re:The failure of self-checkout technology by tomjakubowski on Thursday January 18, 2024 @11:49AM (#39044077)
There's the other kind of shrink at self-checkout where somebody weighs their produce bag of fair trade, heirloom organic apples; and "accidentally" keys them in as the cheap variety. This is pretty common.
Re:The failure of self-checkout technology by m463 on Wednesday January 17, 2024 @09:33PM (#39036836)
Some places turn these things off. At target I never got "unexpected item in bagging area" or those weight check problems.
Re:The failure of self-checkout technology by emodendroket on Thursday January 18, 2024 @01:50AM (#39038776)
> It feels like almost all the issues with self-checkout technology come from the attempts to minimise shoplifting, which don't even seem that effective at doing that. In theory, a system that let you scan products the same way checkout staff do without any weight checks or bagging area rules or other interruptions would be incredibly efficient. Especially if you could do things like scan the same product multiple times if you were buying multiple copies of it.

A lot of them literally do work this way and just accept the risk of shrink,.

Re:The failure of self-checkout technology by idopmstuff on Thursday January 18, 2024 @01:53PM (#39045964)
I was at my local Vons the other day and had two identical boxes of rice at the self checkout. Scanned the one in my right hand and put the one in my left hand in the bagging area, then tried to scan the one in my right hand again (this was all to speed things up just slightly).

The screen threw up a message asking me to check on what I had put in the bagging area. Below it was a video of me shot from the ceiling, with bounding boxes drawn around the two boxes of right (basically identifying that the thing I had scanned was not what I had put in the bagging area).

I was actually pretty impressed... at my work we do some computer vision work, and we're dealing with fairly high-resolution, static images. This managed to draw perfect bounding boxes on a video, and the whole thing processed in less than a couple of seconds.

Seems like if you can do that, there ought to be other ways you can speed things up. Currently for produce with no bar code, I have to type in the name of the produce and then weigh it. They ought to be able to identify it as a zucchini via computer vision and skip the first step, at least.

Re:The failure of self-checkout technology by expazl on Thursday January 18, 2024 @04:58PM (#39048406)
> It feels like almost all the issues with self-checkout technology come from the attempts to minimise shoplifting, which don't even seem that effective at doing that. In theory, a system that let you scan products the same way checkout staff do without any weight checks or bagging area rules or other interruptions would be incredibly efficient. Especially if you could do things like scan the same product multiple times if you were buying multiple copies of it.

Our local supermarket has this. A phone app you scan things as you go, and when leaving you scan a QR code, swipe to pay, then you get a code to open the gate out and you leave. It's incredibly smooth. Also, this means you can just put your bags in your cart and bag while you shop, so you just completely skip checkout, it's a breeze.

I don't understand your point about scanning multiple times though. If I'm buying 5 of something I scan one of them, and just increase the count to five.

Re:The failure of self-checkout technology by bobbylarrybobby on Thursday January 18, 2024 @05:41PM (#39048916)
Many self checkout systems check for the weight of scanned items, so if you scan an item you have to put it down (“please place item in the bagging area”) in order to continue.