A project contract deliverable is a tangible or intangible item that is produced or purchased, and sold to a customer as a result of a project contract. The actual delivery can be subdivided into multiple partial deliveries through a deliverable schedule. This schedule consists of schedule lines, the details level in the ProjectContractDeliverable noun. A project contract deliverable header represents the actual delivery, and groups a set of contract deliverable schedule lines that represent partial deliveries. The project contract deliverable line represents a partial delivery, as part of a deliverable schedule. The sum of the ordered quantities of the deliverable schedule lines. The sum of the delivered quantities of the deliverable schedule lines. The sum of the accepted quantities of the deliverable schedule lines.