Use a mind map to make a decision clearer

Write down the decision boundary

Start with the decision you actually control. “Which topic should I propose for my semester project?” is more useful than “Which subject is best?” Record the deadline, available supervision, workload, and required deliverable.

Separate non-negotiable constraints from preferences. An option that cannot meet a course requirement should not win because it scores well on something less important.

Ask the same questions of each option

For three possible project topics, use identical child branches: interest, available evidence, methods required, feasible scope, and main uncertainty. Put a short conclusion in each label and the reasoning in the expanded note.

Record the source of the evidence. “The supervisor confirmed that the dataset is available” is stronger than “There is probably data somewhere.” Label the second as an assumption and write the next step needed to check it.

Do not use more detail for your favorite option than for the alternatives. Uneven notes can make one choice seem more convincing simply because you spent longer writing about it.

Use numbers only when they clarify

If a scoring table helps, create one in a spreadsheet and keep its assumptions with the map. A five-point rating for “interest” is a judgment, not a measurement with scientific precision. Adding several uncertain ratings does not remove the uncertainty.

Try a sensitivity check: would the preferred option change if the time estimate doubled or a dataset became unavailable? If a small plausible change reverses the result, resolve that uncertainty before committing.

• Which criterion drives the choice?
• What evidence is weakest?
• What could be tested cheaply?
• Which part of the decision is reversible?

Keep a short decision record

Write the choice, the date, why it currently makes sense, and a condition for reviewing it. This is particularly helpful when a project changes: you can revisit the assumptions rather than arguing with a conclusion whose context has been forgotten.

Mappy can keep the options, explanations, formulas, and links together. It does not act as a decision engine or validate the facts you enter. For high-stakes decisions, a visual map is only a supporting note-taking tool, not a substitute for appropriate expertise.

Finish with the next action required by the choice. A clearer decision should change what you do, not just how the diagram looks.