Detail Engineering, EPC Execution.
Detail engineering is where transcription error costs the most. A miscounted analog input on the PLC card schedule means a returned panel. A wrong spec on the line list means a metallurgy mismatch caught at hydrotest.
Use it through the lifecycle.
Every IFC revision requires the I/O list, line list, and equipment list to track with it. A structured extraction off the current drawing set, exporting to TIA Portal, Studio 5000, or PLCCreator with a revision comparison report, keeps the MOC package current without repeating the transcription step.