A formal engineering deliverable required of the Engineering, Procurement, Construction (EPC) organization by the Owner or Client. An EWP describes a discrete scope of work to be executed in a fashion to feed the definition of CWPs. Generally there is a one-to-one relationship between an EWP and a CWP, although in some cases a single EWP may result in multiple CWPs. Contents of an EWP generally include key engineering deliverables such as 3D models, drawings, reports, datasheets, and other details required to procure the materials, labor, and other indirect support functions required to construct the package. Typically, an EWP is executed by area and discipline; although, an EWP can be executed by specific units, buildings, processing facilities, etc.