Nice to see Domain-Driven Design mentioned. As DHH said it's a bit of a slog - but worthwhile. For those who want a good overview and don't fancy the slog I'd

Nice to see Domain-Driven Design mentioned. As DHH said it's a bit of a slog - but worthwhile. For those who want a good overview and don't fancy the slog I'd recommend taking a look at http://www.infoq.com/minibooks/domain-driven-design-quickly http://www.infoq.com/minibooks/domain-driven-design-quickly - a 100 page summary of the book from InfoQ. The original is definitely worth a read - the summary might let you see why it's worth the effort ;-)