On the MayFlower blog today there's a new post looking at two ways to do software architecture (the easy way and hard way) and some of the traditional practices behind its development.
When it comes to software architecture, stuff gets funny. First we learn everything about it at university. We learn to use it as a part of our main project plan. We learn how to do risk evaluation. [...] Since we didn't have a lot of experience with software back then, the resulting architecture is a badly done, but well documented. This style of software architecture is called "Enterprise Architecture" and usually done by consultants.
They talk about delivering software versus delivering documentation and list some of the actual common reasons software architecture turns out how it does including: "I read about it in a blog", "It worked for me once" and the idea of the "Golden Hammer" of standardized structures.