A collection of resources tagged in XML to serve as the core of a modular environment for developers of STEP, a family of product data exchange standards, and PLCS, a family of standards related to supporting the complete product life cycle.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.