CAPM Practice: Explain when it is appropriate to use a predictive, plan-based approach

The predictive approach is commonly called the 'waterfall' life cycle because work flows sequentially from one phase to the next — like a waterfall. Each phase (initiation, planning, execution, monitoring, closure) is generally completed before the next begins.

**Why not B:** The adaptive life cycle is the opposite of predictive. Adaptive approaches embrace change and evolving requirements through iterative delivery, whereas predictive approaches define requirements upfront and follow a sequential plan.

**Why not C:** The incremental life cycle delivers the product in pieces (increments), with each increment adding functionality. While it shares some sequential characteristics with predictive, it is a distinct approach that delivers usable portions throughout the project rather than a single final delivery.

**Why not D:** The iterative life cycle refines the product through repeated cycles of prototyping and feedback. It is designed for situations where requirements need to be discovered through iteration, which is fundamentally different from the predictive approach's upfront definition of requirements.