Business Pitch Dictionary by pitch.dog
Software delivery & architecture · Core

Legacy system

Also called: legacy technology

ELI5

An old system the organisation still depends on.

Used in conversation

“The legacy system contains the authoritative customer record.”

Definition

An older system still in use that may constrain change, support or integration.

Here “Legacy system” means: An older system still in use that may constrain change, support or integration.

Pitch context

You will see “Legacy system” in product strategy decks, roadmaps, experiments and architecture reviews when the discussion reaches software delivery & architecture.

Why it matters: It helps a reader interpret software delivery & architecture without confusing the measure, decision, role or evidence being discussed.

Sources & evidence · 2

Direct term-level sources and supporting source families.