Re:Managing the Development of Large Software Systems (1970)...
by Jtsummers on Tuesday January 19, 2016 @11:56AM
(#10931950)
I almost made a comment about that part. But that's the only part that's restricted (and then not strictly) to two "iterations". But I don't think that was what OP was referring to.
> This paper doesn't just describe the waterfall, it explains why it doesn't work and proposes a more iterative approach, albeit with only two iterations.
The iterative steps involved are not the throw one away bit, but the feedback loops in between the different stages of development. And the paper does not restrict its model to two iterations.
The throw one away portion are the prototyping phase, which is the same development process in miniature. Like how, here, we might prototype our radio software without the hardware at all just to make sure we understand the protocol and other aspects correctly so when we do the full development on the radio (often with reused code from the prototype, though) it's better informed. [0]
[0] Though, true to form, the last prototype became a delivered product instead of the basis for the final product. Oops. The dilemma of making a too good prototype, but not engineered well enough to actually be a final product. Maintenance has been a beast.
> This paper doesn't just describe the waterfall, it explains why it doesn't work and proposes a more iterative approach, albeit with only two iterations.
The iterative steps involved are not the throw one away bit, but the feedback loops in between the different stages of development. And the paper does not restrict its model to two iterations.
The throw one away portion are the prototyping phase, which is the same development process in miniature. Like how, here, we might prototype our radio software without the hardware at all just to make sure we understand the protocol and other aspects correctly so when we do the full development on the radio (often with reused code from the prototype, though) it's better informed. [0]
[0] Though, true to form, the last prototype became a delivered product instead of the basis for the final product. Oops. The dilemma of making a too good prototype, but not engineered well enough to actually be a final product. Maintenance has been a beast.