Decision methods · 5/6
Preserve an exit before committing
Distinguish reversible steps and design bounded trials.
About 15–20 minutes. The following cases are fictional.
Record your first judgment
A team plans to migrate all records and close the old system in a week. It says it can return if needed, but has not tested export or recovery.
Understand the judgment process
Reversibility requires an actual route back: recoverable data, an available workflow and affordable switching time. Verify backups, formats and restoration before cancelling the old system.
Concentrate uncertainty in a limited trial with a noncritical project, few participants and a short period while retaining the old system. Small trials have costs and leave scale, load and permissions partly untested.
Imagine failure a month later: lost permissions, poor search or inadequate training. Assign observable risk indicators and stopping conditions. Do not repeatedly relax the original rules merely to obtain a favorable result.
Checks you can perform
- List hard-to-reverse steps and tolerable losses.
- Verify exit, restoration and ownership.
- Choose the smallest informative trial.
- Prespecify continue, modify and stop conditions.
Guided practice
Define a migration trial, stopping condition and rollback.
Explore the explanation
Trial noncritical records with old copies retained; pause expansion on a content or permission validation failure; restore the prior entry point using a rehearsed procedure. Set thresholds from actual requirements, not generic examples.
Apply it in a new context
You want a weekly reading group but fear a long commitment. How could you try it?
Compare after attempting
Run two meetings with limits on preparation time, participation expectations and feedback questions. Decide afterward without a year-long promise. Early popularity does not establish long-term retention.
Preserve a revision record
Trials require bounded risk. Low probability alone does not justify severe irreversible harm.
Check whether you supplied inspectable evidence, a feasible next step and revision conditions. Revealing an answer is not mastery.
Source and scope
UK Government — Multi-criteria analysis: a manual
The source provides conceptual or methodological background. Cases, steps and exercises are authored here; they are not the original experiment or evidence of this course’s effectiveness.
Completion is a personal record, not proof of mastery or certification.