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Dictionary by pitch.dog
Requirements, stories & service design · Core

Functional requirement

Also called: functional spec

ELI5

Something the system must do.

Used in conversation

““Users can export a report” is a functional requirement.”

Definition

A statement of behaviour or capability a system must provide.

Here “Functional requirement” means: A statement of behaviour or capability a system must provide.

Pitch context

You will see “Functional requirement” in product strategy decks, roadmaps, experiments and architecture reviews when the discussion reaches requirements, stories & service design.

Why it matters: It helps a reader interpret requirements, stories & service design without confusing the measure, decision, role or evidence being discussed.

When the words have to travel

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Sources & evidence · 2

Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.