prototype

A preliminary, functional model created to gather early stakeholder feedback on the envisioned product before full-scale development.

Key Points

  • Built early to test assumptions, workflows, and usability with stakeholders.
  • May range from low- to high-fidelity depending on the questions to answer.
  • Clarifies requirements and aligns expectations, reducing risk and rework.
  • Supports iterative development by informing backlog items and design choices.

Example

On a new e-commerce project, the team builds a basic checkout flow with a mock payment service. Users try the flow, provide feedback on steps and messages, and the team updates user stories and designs before implementing the full payment integration.

PMP Example Question

During an agile initiative, the team wants to validate user interactions and assumptions before committing to full implementation. What should they create?

  1. A preliminary functional model to solicit early stakeholder feedback
  2. A complete product increment ready for release
  3. A requirements traceability matrix
  4. A finalized work breakdown structure

Correct Answer: A — Prototype

Explanation: A prototype is built early to obtain feedback on the envisioned product, helping refine requirements before full development.

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