I'm not sure I'd quite go as far as revulsion but this sort of breakdown doesn't really appeal to me, and I think the reason is that it's possible to tick most,

I'm not sure I'd quite go as far as revulsion but this sort of breakdown doesn't really appeal to me, and I think the reason is that it's possible to tick most, if not all, of the boxes without actually delivering working, useful, software -- let alone something that's actually pleasant to use. You can possibly argue that in this scheme, ability to think about the whole system falls under "systems decomposition" -- but that's just one box of many, and still doesn't quite relate to building things. Ultimately, I guess I'd be happy to ignore any and all of these things if someone can build what I want or need.