The Agile System Development Lifecycle (SDLC)

The Agile System Development Lifecycle (SDLC)
by Scott W. Ambler

I'm often asked by clients to facilitate workshops overviewing the ideas presented in the Agile Manifesto and agile techniques such as Test-Driven Design (TDD) , database refactoring , and agile change management . One issue that many people seem to struggle with is how all of these ideas fit together, and invariably I found myself sketching a picture which overviews a generic lifecycle for agile software development projects. This lifecycle is captured in Figure 1, which is comprised of four phases: Iteration 0, Development, Release/End Game, and Production. Although many agile developers may balk at the idea of phases, perhaps Gary Evan's analogy of development seasons may be a bit more palatable, the fact is that it's been recognized that processes such as Extreme Programming (XP) and Agile Unified Process (AUP) do in fact have phases (for diagrams, see XP lifecycle and AUP lifecycle respectively). Furthermore, the Agile MSF calls its phases/seasons "tracks".


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