A software project accumulates decisions in meetings, messages and demonstrations. Months later, the team may remember the outcome but forget the reason. A concise decision log preserves context without turning a small project into a documentation exercise. It is especially helpful when an owner, supplier and several staff members share responsibility for the work.
Record decisions that constrain later work
You do not need to log every wording adjustment. Focus on choices that affect scope, workflow, responsibilities or dependencies. A hypothetical Albury commercial laundry might decide that collection routes are planned by depot rather than by customer region. That choice shapes later screens and reports. Record what was decided, the alternatives considered and why the chosen approach suited the current business. Include the date and the person responsible for the decision.
Separate evidence from assumptions
A decision may rely on observed work or on an expectation that has not yet been tested. Make that difference visible. The laundry might know that depot planners already coordinate drivers, while only assuming that every customer can be assigned to one depot. If unusual customers later appear, the team can revisit the relevant assumption rather than treating the original choice as permanent truth. A short note is enough when it captures the reasoning clearly.
Make reversal conditions explicit
Some decisions are temporary because the first release has a narrow audience. State what would cause a review, such as adding another depot or introducing a different service type. The tradeoff is between stability and adaptability: reopening every choice wastes attention, while never revisiting assumptions can trap the project in outdated constraints. A review trigger lets the team focus discussion where circumstances have actually changed, instead of restarting old debates whenever someone joins the project.
Keep the log close to the work
Use one shared place with a simple index. Link a decision to the requirement or workflow it affects, and mark superseded choices clearly so readers do not mistake them for current instructions. Your next scoping step is to write up the three most consequential choices already made. If nobody can explain why one was chosen, treat that as a question to resolve. Review new entries briefly at delivery checkpoints rather than expecting everyone to read a long archive.
Planning checklist
- Record the choice, reason and owner.
- Label evidence and untested assumptions.
- State when the decision should be revisited.