The process of marking engineering drawings to record verified field conditions or completed changes prior to formal document revision.
Yellowlining is the controlled process of marking engineering drawings to record verified field conditions, completed modifications or construction changes that have been confirmed in the field but have not yet been incorporated into the next controlled document revision. Yellowlines provide verified engineering markups that support as-built documentation and configuration management.
Yellowlining records verified field changes pending incorporation into controlled engineering documentation.
Unlike Redlines, which typically identify proposed or pending engineering changes, Yellowlines generally represent changes that have been completed and verified in the field prior to updating the controlled documentation.
Yellowlining records verified field changes, whereas Redlines typically identify proposed or pending engineering changes awaiting implementation or verification.
Document Management; Configuration Management; Engineering Design.
Engineering.; Construction.; Oil and gas.; Petrochemical.; Infrastructure.
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