Clarifying the Definitions
Too often in executive boardrooms, the terms Proof of Concept (PoC), Prototype, and Minimum Viable Product (MVP) are used interchangeably. Conflating them leads to wasted capital, confused engineering teams, and mismatched executive expectations.
Understanding the exact role of each milestone allows leaders to allocate resources with surgical precision.
Proof of Concept (PoC): Feasibility Testing
Purpose: Can this technically be done?
Audience: Internal engineering and technical decision-makers.
Lifespan: 1 to 2 weeks. PoC code is intentionally throwaway; it exists strictly to answer a high-risk technical question, such as: Can a local LLM extract structured JSON from legacy PDF invoices with 99% accuracy?
Prototype: User Experience & Interaction Validation
Purpose: How will the user interact with this system?
Audience: Stakeholders, design teams, and test users.
Lifespan: 2 to 3 weeks. Prototypes focus on UI flows, visual aesthetics, information architecture, and user feedback before heavy backend engineering begins.
Minimum Viable Product (MVP): Market & Workflow Validation
Purpose: Do users actually extract business value from this in daily operations?
Audience: Real production end-users or enterprise customers.
Lifespan: 4 to 8 weeks. An MVP is production-grade software engineered with real databases, authentication, security, and telemetry. It includes only the core feature set required to solve the primary problem and prove measurable business ROI.