PRINCE2 7 Foundation · Study lesson 04
Value and shared learning
Keep a reason to continue, and use experience to improve decisions.
9 minute study lesson · Principles · Original learning material
What you will understand
- Explain continued business justification using current evidence.
- Distinguish seeking, applying and sharing lessons.
- Recognise that an approved business case and a lessons record need ongoing action.
The idea
Two principles protect a project from following yesterday’s assumptions indefinitely: ensure continued business justification and learn from experience. One asks whether the remaining investment is still worthwhile; the other asks what relevant knowledge can improve the next decision. Together they encourage a team to change its reasoning when evidence changes, rather than defend its original prediction at any cost.
A project needs a reason to start and a reason to continue. The business case explains the proposed value in relation to costs, risks and the ability to achieve the intended result. Approval does not freeze that reasoning. Expected benefits may shrink, a cheaper alternative may appear or a critical assumption may fail. The information must remain useful at decisions about further commitment.
Money and effort already spent are relevant to reporting the project’s history, but do not alone justify additional spending. A board should consider the remaining options using current information, including the consequences of changing course or stopping. Continued justification does not mean that any adverse event demands cancellation. It means that the authority making the decision has an updated, reasoned basis for it.
Learning starts before detailed work. Seek relevant experience from earlier projects, other teams, suppliers and people who will operate the result. Check the setting before adopting a lesson: an approach successful in one location may depend on skills or conditions absent here. Existing experience is an input to judgement, not a guarantee that the same action will always work.
During the project, compare expectations with what actually happens. Investigate why a delay or a successful trial occurred and identify an action that could improve future work. Assign ownership where action is needed and check whether it helps. Capturing a sentence in a log without changing any behaviour is a record of an observation, not evidence that its value has been realised.
Share useful learning while another team can still benefit. Waiting for closure can miss opportunities within the current project. At closure, make lessons understandable enough for future users: describe the situation, evidence, implications and limits. A project manager encourages learning, but useful observations can come from anyone. Avoid a blame culture that makes people conceal the evidence needed for improvement.
Value and learning reinforce each other
| Evidence | Useful response |
|---|---|
| A benefit forecast changes | Reassess the remaining investment. |
| A previous project found a failure mode | Change this project’s plan before the same failure occurs. |
| A new lesson emerges | Record it, decide an action and share it with those who can use it. |
An original fictional example
A roaming library revises its service model
A regional charity is equipping a bus as a roaming library. Trial visits show much lower weekday demand than expected. A neighbouring team explains that evening visits worked better because carers and workers could attend. The bus interior is not yet finished.
The decision
Test the revised timetable, update demand and cost assumptions, and present the remaining investment options to the board. Record why the change was tested and share the result with other regions.
Why it makes sense
The team applies relevant experience to improve evidence for continued justification. Neither the amount already spent nor an untested success elsewhere settles whether this project should continue unchanged.
A common confusion
The mistaken idea: A lessons log and an approved business case prove these principles are being followed.
The distinction: Their value comes from current decisions and changed actions, not the existence of files.
Refresh the reason; apply the lesson; check what changed.
Points to remember
- Distinguish past expenditure from the value of further investment.
- Learning should be sought, applied and shared throughout the project.
- Changed justification calls for an informed decision, not automatic continuation or cancellation.
Your takeaway
Keep investment reasoning current and make learning practical. Seek evidence early, act on it during delivery and leave experience that another team can use responsibly.
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