1. Product Data Management Implementation Guide
  2. Engineering Change Order Revision Levels

Engineering Change Order Revision Levels

A revision level is an alphanumeric character that represents the number of times that an item has been changed. This value usually indicates a permanent change to the form, fit, or function of an item. For efficient tracking of changes with revision levels, the revision levels for an item's bill of material and its routing instruction should match. You can use an ECO to update the revision level for an item and a drawing.

Use ECOs to manage revision-level information.

For example, you can:

  • Assign the next revision level to an ECO using a value in UDC 30/NR.

  • Load parent revision levels for a component that is being added or modified.

  • Locate the revision levels of an ECO.

  • Assign ECO revision levels automatically.

  • Maintain drawing revision levels for each item that is changed by an ECO and update the drawing revision in either the Bill of Material (F3002) or Item Master table.