Assess what a business plan can and cannot do
Use a plan to organise a venture's objectives, market, resources and finances while recognising that forecasts are assumptions.
Cambridge International AS & A Level Business 9609, 2026–2028 syllabus and 2029 syllabus, section 1.1.3. Cambridge states that the 2029 syllabus has no significant changes affecting teaching. This lesson maps only its named section; other sections and full paper practice remain separate. Written practice is self-checked
Before you begin
- No previous business course is assumed. Use the lesson's definitions before applying them to the business context.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
What is a central purpose of a business plan?
What you will learn
- Explain the purpose and common elements of a business plan
- Use a plan to communicate a proposal
- Evaluate benefits and limitations of planning
A plan makes assumptions and choices visible
A business plan sets out the proposed activity and how it may achieve its objectives. It commonly includes the product or service, target market, research, marketing approach, operations, staffing, finance needs, forecasts and key risks.
A plan can organise priorities, reveal missing resources, communicate a proposal to lenders or partners and provide a basis for monitoring actual results against forecasts.
A plan is a guide, not a promise
Forecasts rely on assumptions about sales, costs and timing. If customers, competitors or input prices change, the numbers can quickly become inaccurate.
A long plan can take time to prepare and may create false confidence if evidence is weak. Review it when circumstances change; do not treat a written forecast as proof that the venture will work.
Pause and explain
Why should a business review its plan after a major change in customer demand?
Worked example
A lender asks for a plan before financing a mobile bicycle repair service. Name two useful sections and explain one limitation.
Show the worked solution
- The market section can show who is likely to use the service and how demand was researched.
- The finance section can show start-up needs, cash timing and assumptions.
- Actual customer numbers may differ from the forecast.
Answer Market evidence and financial forecasts help the lender assess the proposal. However, projected demand is uncertain and must be checked against actual results.
Try a topic test
Choose Easy, Normal or Difficult. Save your answers and open worked review after finishing.
Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
A student seeks a loan to open a tutoring centre. Identify three plan elements that would help a lender judge the proposal.
Give me a hint
Choose evidence about customers, delivery and finance.
Compare my reasoning
- Show the target learners and evidence of demand.
- Explain staffing, location and how tutoring will be delivered.
- Set out start-up finance, expected cash flow and assumptions.
Useful elements include market evidence and target customers, the operating and staffing plan, and financial requirements with cash-flow assumptions. The lender can assess whether these parts fit together.
Look for these in your work
- Three relevant elements
- Market and delivery covered
- Finance assumptions included
A plan predicts 500 subscriptions, but a pilot attracts 120. Explain how the owner should respond.
Give me a hint
Compare actual evidence with the assumption, then decide whether the model or forecast should change.
Compare my reasoning
- The actual pilot result is below the forecast.
- Investigate whether the sample, price or promotion explains the gap.
- Revise the forecast and action before committing to the original scale.
The owner should investigate why the pilot reached 120 rather than 500, update the assumptions and cash plan, and decide whether to adjust the offer or expansion. The plan should guide review, not override the evidence.
Look for these in your work
- Variance recognised
- Cause investigated
- Plan revised using evidence
A founder says a detailed 40-page plan removes business risk. Evaluate this claim.
Give me a hint
Weigh planning benefits against the limits of forecasts and changing conditions.
Compare my reasoning
- A plan can identify risks, resource needs and assumptions.
- Detailed writing cannot make demand or costs certain.
- Regular review and evidence-based tests matter more than length alone.
The claim is too strong. A plan can expose assumptions and help prepare responses, but forecasts can be wrong and external conditions can change. Evidence, small tests and regular review are also needed; length alone does not remove risk.
Look for these in your work
- Benefit recognised
- Limit explained
- Reasoned conclusion
Common mistakes
- Treating projected sales as guaranteed
- Listing sections without explaining how they support a decision
- Confusing a business plan with a contract or a substitute for market research
What can you explain now?
What is a central purpose of a business plan?
Compare with the explanation
To organise and communicate a proposed business activity
It records what the business proposes to do and how.
After trying it yourself, choose your next review. This is your self-assessment.
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Make it stick
Name three useful business-plan elements and one reason a plan can become outdated.
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.