ECN Glossary Definition

Engineering Change Notice: An Engineering Change Notice (ECN) is a document authorizing and recording design changes throughout the prototyping and life cycle phases of a product. ECN documentation contains the justification for changes made to a component or system once the initial design is complete.

See also: ECN.

This term is used in documentation planning, authoring, editing, publishing, and content maintenance. It helps technical communicators describe deliverables, standards, review practices, and the structure of user-facing or internal documentation.