Material Disposition Codes Definition
Engineering change orders (ECOs) list all affected parts and their revisions. Depending on the form, fit, and function (FFF) of the change to existing parts, procurement teams will determine how to cutover or introduce the change into the production process. Those changes are described via material disposition codes to explain whether parts or assemblies will be replaced immediately, will be used up (use-as-is), changed during work-in-process on the factory floor, or changed immediately (mandatory rework). Material disposition codes are detailed for each affected part.