Which of the following is NOT a step in the Porter 5 tests checklist?

• A. Define revenue model
• B. Assess unique value proposition
• C. Check activity fit
• D. Ensure strategic continuity

Answer: (A)

Porter 5 tests look at how a business model holds together as a living system: whether the proposition is truly compelling, whether the activities required to deliver it fit together smoothly, and whether the chosen strategy can survive and adapt over time. The emphasis is on strategic coherence and operational feasibility rather than on the specific mechanics of money it earns.

Defining the revenue model is not a step in this checklist because these tests focus on how all parts of the model align to create value and sustain advantage. The emphasis is on the value proposition and the internal fit of activities, plus the ability to maintain the strategy as conditions change. That’s why the other three options—assessing the unique value proposition, checking activity fit, and ensuring strategic continuity—fit the framework, while defining the revenue model does not.