Approved Manufacturer List (AML)

Approved Manufacturer List (AML) is the data object that records, for each internal part number, the manufacturer part numbers (MPNs) and manufacturers that engineering has approved as functionally equivalent and qualified for use. It is the who-makes-it layer of the part record — distinct from the AVL (who-sells-it).

What it covers

• Internal part to manufacturer-part mapping with MPN, manufacturer name, and qualification status.
• Approval status — preferred, alternate, conditional, or obsolete.
• Qualification evidence — first-article inspection, lifecycle data (PCN/EOL), reliability test results.
• Multi-source strategy — at least two qualified manufacturers for high-risk parts.
• Linkage to compliance declarations (RoHS, REACH, conflict minerals) per manufacturer.

Relationships (see sidebar)

• Supports Supplier Development, BOM Management, and Quality Management.
• Implemented by PLM platforms including Siemens Teamcenter, PTC Windchill, Aras Innovator, Oracle Agile, and PTC Arena.
• Pairs with the Approved Vendor List (whom you buy from) and the Part Master.