Comparisons

Pairs that get conflated in real conversations. Neither column wins — what decides is the situation. Each record leads with the confusion, because the confusion is the reason the record exists.

Outcome vs output

What people get wrong about this pair

Teams report output because it is always measurable and always true. "Shipped on Thursday" cannot be wrong. Outcomes can fail, so they get quietly dropped from the update, and the team optimises what it reports.

Outcome
Use it when

To decide whether the work mattered and whether to invest more.

Output
Use it when

To plan capacity and track delivery — it is not nothing, it is just not the goal.

AspectOutcomeOutput
What it answersDid anything change for someone?Did we deliver what we said?
When you knowWeeks after launch, from a number or a ticket queueThe moment it merges
Who is on the hookThe person who chose to build itThe person who built it
Failure looks likeA feature nobody uses, reported honestlyA missed date