Mappings aren't entirely monolithic things in our architecture. From the integrator's point of view there's an guided process of connecting to a data source, enriching the physical schema with some ontological data, mapping verb frames to those ontological concepts etc. We're making this as simple as possible - you need to speak English (English only at the moment, apologies), know your schema, and know the concepts it represents.

We're really hoping to produce a demo integration soon, and I've mentioned Magento elsewhere, or something like Wordpress etc. I'll publicise that when it's available