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NAS 9300-007 : LOTAR
The tracking, control and status control of product data, either as files, or through a database. PLM extends the scope of PDM to include each physical product produced from a design, including deviations from the design and usage of the product.
See Also:
Product Data, Product Data Management, Lifecycle Data, Lifecycle Activity
Alternate Definitions:

MIL-STD-31000B - The process or system used for managing productrelated design, production and maintenance information. PLM systems are typically software applications designed for the purpose of lifecycle management of a product.

MBE Maturity Index - A process that enables an organization to manage the product lifecycle by integrating people, data, processes, and business systems.