DoD Ch. 5

Brooks first talks about the dominant design and how too many designs can be misleading and not useful.  Then he talks about Maher, Poon, and Boulanger's model that "evolves" on both sides, quote "The problem space and solution space co-evolve together...." He then disagrees and thinks that even this evolution model isn't sufficient. Brooks also mentions a Whirligig model and Raymond's Bazaar model that involve cycles and a cathedral-like design, respectively.  He goes in depth about the bazaar model saying that this model consists of many vendors and many buyers who vote, and in turn, reward vendors. This model typically produces a much more superior product since so many people develop it.  Brooks then mentions that the bazaar model works so well because the producers are the users.  Finally Brooks sums up this chapter with the Boehm Spiral model.  This model is strong and pushes forward ideas. Lastly Brooks summarizes chapters 2-5 and refers to each model with small notes about them.