PHASE REVIEW
This method divides the product development life cycle into a series of
distinct phases. Each phase comprises a body of work that, once completed
and reviewed, is handed over to the next phase. No attention is paid to
what may or may not happen in the subsequent phases, mainly because of
a lack of expertise or exclusive focus on the tasks in the current phase. The
phase review method is a sequential rather than concurrent product
design process; that is, each phase is executed and completed before the
next phase can begin. Phases typically are carried by different functions or
departments within the organization. All tasks, decisions, and tradeoffs are
made solely in the context of the phase being executed. A significant
criticism of this approach is the poor coordination between phases, which
can result in significant delays and rework.