Term · General Industry
Form-fit-function
The criterion that a substitute part matches the original in physical form, mounting fit and functional behaviour, and so can be used interchangeably. Widely used in procurement and obsolescence management.
- Also known as
- FFF, Form, fit and function
- Type
- Term
- Domain
- General Industry, Product strategy
Notes
Defence and aerospace programmes rely on FFF equivalents to keep decades-old systems supportable after original parts go obsolete.
Related terms
Part of the General Industry glossary, with every term in the topic and the lifecycles, tools and standards that use them.
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