Engineering Change Order

A formal document in PLM that records a proposed or approved modification to a product design, including the parts affected, the reason for the change, and the implementation date or effectivity.

Why it matters

In a variant product family, an ECO against a shared platform component must trigger a review of every variant it affects. Without formal ECO traceability across the variant family, platform changes silently break individual variant BOMs.

Cite this definition

Finocchiaro, Michael. “Engineering Change Order.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/engineering-change-order