Items are the components by which a product is implemented and described. Typical items are source code files, executables, program resources such as graphics, and specification documents. Entire directories of files can also be items. Items are versioned objects with full lifecycle support.

Each item is owned by a single design part and may be used by one or more other design parts. Access to an item is controlled by the role assignments for the design part that owns it and/or the design parts above that.