When worlds collide

Having been on both sides of the aisle, it is easy to see how the SDLC and Agile camps can believe themselves to be mutually exclusive. After all, from the “plan-first” point of view, the perceived “just build it” mentality of the Agilists seems somewhat reckless and cowboy, while the “plan everything” mentality seems hopelessly wasteful and doomed to pointless failure, for the “feature-first” crowd.