Core idea
An entrepreneur tries to solve a problem through an organised activity or business. A useful idea must serve people and work within available resources.
Solving method
Separate the customer problem, proposed solution and business model. Test assumptions with a small measurable experiment before scaling.
Worked example
Neighbours want a nearby notebook delivery service. What should you check before starting?
1. Ask whether people need the service and would use it.
2. Estimate notebook, delivery and other costs.
3. Try a small test and learn from the results.
Read the diagram
Start with the problem neighbours describe, then test a small delivery offer. Record actual use, delivery costs and feedback rather than treating expressions of interest as purchases. The last box informs the next decision: improve, continue or change the proposal. Revenue, customer value and feasible operations all matter.
Exam-style application
A student offers packed lunches. The customer problem is convenient meals, the solution is delivery, and the revenue model is a weekly subscription. A pilot sells 30 subscriptions, but 20 cancel after one week. Initial demand alone is not proof of a sustainable business; investigate quality, delivery reliability and renewal willingness. Define a retention measure before spending on expansion.
Common mistakes
Interest in an idea does not automatically mean people will buy it. Revenue is not profit, and a popular idea is not automatically a viable business. A business model must explain costs and repeatable value as well as sales.