How to write a management decision memo

Prepared before a meeting, the memo is useful when different teams approach the same issue with different information. It does not have to fit on one page. The main decision should, however, be visible without searching through lengthy appendices.

State the requested decision first

Replace a topic such as “new warehouse project” with the action required. Is management being asked to compare options, approve a defined scope or allocate time to further investigation?

Identify the decision owner, deadline and boundary in the same section. Keep approval for an initial assessment distinct from approval for a difficult-to-reverse commitment. The reader needs to understand which authority they are being asked to exercise.

Compare real options using shared criteria

Describing only the preferred option in detail leaves the comparison incomplete. Identify feasible alternatives, including continuing the current approach or deferring the decision when relevant. Examine each option using the same questions.

NASA's decision analysis guidance addresses documenting alternatives, evaluation criteria and uncertainties together. NASA, Decision Analysis.

A short option card can contain:

• The intended result and its supporting evidence.
• Required resources, timing and dependencies.
• Conditions that have not been verified.
• Findings that would make the option unacceptable.
• Opportunities to reverse or reduce the commitment.

Avoid changing criteria after seeing the results simply to favour a preferred option. If the criteria need to change, record the reason.

Distinguish observations, interpretations and assumptions

“Three deliveries were late during the period” may be an observation supported by records. “Capacity is the cause” is a proposed explanation. “Additional capacity will prevent the delays” is a further claim that needs examination.

Do not present these statements with the same level of certainty. Make the source of each material finding accessible. If there is a competing view, include the evidence behind it. Where uncertainty cannot be quantified, describe the unresolved condition instead of assigning an unsupported percentage.

Complete the recommendation with conditions and ownership

Suppose a company compares moving to a new warehouse with changing the layout of its existing facility. A useful memo goes beyond “approve the move”. It identifies the volume, transition-time and service assumptions behind the recommendation, along with any records still requiring verification.

If further investigation is recommended, specify its expected output and owner. Once management decides, record the chosen option, its conditions and any departure from the original recommendation. The analysis and the final management decision can remain separate entries.

Make the memo useful after the meeting

Add a version date, identify the relevant plan and specify when the decision should be reviewed. If a customer's schedule changes, a supplier quotation expires or a pilot misses its intended result, the team should know which decision needs to be reopened.

The memo connects the options to the management request. Detailed records of individual assumptions can sit in supporting material. This keeps the main document readable while preserving a traceable basis for the decision.

To examine an existing plan before commitment, Countersign provides a written second opinion. Share the decision you face and its target date.