PLCS Requirements in US DoD projects

3.91.1.1. The PM shall require the use of International Standards Organization (ISO) 10303, Standard for Exchange of Product (STEP) Model Data, AP239, Product Life Cycle Support, for engineering data.

3.91.1.2. Legacy system modifications shall implement ISO 10303 for new engineering data to the maximum extent feasible. Conversion to ISO 10303 for the entire legacy system is encouraged when supported by a positive business case analysis (BCA).

3.95.1. The PM shall address industrial base constraints in the LCMP. This should address mitigation to ensure that the system(s) can be supported during its life cycle. Open systems design, including Modular Open Systems Approach (MOSA), can help mitigate the risks associated with technology obsolescence and diminishing manufacturing capabilities by avoiding being locked into proprietary technology or by relying on a single source over the life of a system. Incremental development also should be considered to alleviate obsolescence concerns.

The Complete Document is available at: http://www.af.mil/shared/media/epubs/AFI63-101.pdf