This approach has strengths and weaknesses. Its great strength is that it is supremely logical: think before you build, write it all down, follow a plan, and keep everything as organized as possible. It has just one great weakness: humans are involved. For example: this approach requires that the good ideas all come at the beginning of the development cycle, where they can be incorporated into the plan. But as we all know, good ideas appear spontaneously throughout the process – in the beginning, the middle, and sometimes even the day before launch, and a process that doesn’t permit change.
