During planning for a global supply-chain management platform, each region is still refining processes and regulations are likely to change. Executives want incremental evidence of benefits and early visibility into integration risks after a prior project's costly late-stage defects. Which implementation model best accommodates evolving requirements and gives sponsors frequent assurance that risks are being managed?
Big-bang implementation after a global design freeze and final system test
Sequential waterfall with gated design, build, and test phases for all regions
Iterative incremental delivery with time-boxed cycles and end-of-sprint stakeholder reviews
Single-region pilot executed after the full build is complete
Iterative or incremental delivery breaks the solution into short, time-boxed cycles that produce working slices of functionality. Each cycle concludes with stakeholder demonstrations and risk reviews, allowing the team to validate regional needs, uncover integration or compliance issues early, and adapt the backlog before major rework is required. A big-bang cutover or gated waterfall freezes the design too early, making it hard to react to changing regulations. Limiting validation to a single regional pilot late in the build phase also defers discovery of enterprise-wide integration risks, and a full sequential rollout provides the least opportunity for continuous risk management.
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Why is an iterative model considered effective in addressing risks during system implementation?
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PgMP
Strategic Program Alignment
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