A task, requirement item, design item, test script, or defect. Generically you could refer to items in PSDP as software artifacts (especially requirement items, design items, and test scripts). A PSDP Artifact is a feature that links to together a task, requirement item, design item, and test script.

There are differences between these items. Each collects different type of data and have different features. Tasks and defects are the only PSDP items that have workflow management. Requirement Items, Design Items, and Test Scripts are the only items that can be linked to actors and have a status.