scope:

Use/relationship: Conceptual design drawings/models define engineering design concepts. They are used to reduce technical uncertainty as to whether or not a technology is feasible or a design concept has potential to meet stated requirements.

a. This Data Item Description (DID) contains the format and content preparation instructions for Conceptual Design Drawings/Models resulting from the work task described in 5.3.3.1 of MILSTD- 31000.

b. This DID is applicable to acquisitions of military systems, equipment, and components. It is intended for use primarily during the concept demonstration/validation phase of the DoD materiel life-cycle.

c. It is not intended that all the requirements contained herein should be applied to every program. This DID should be tailored to the minimum data requirements of the applicable contract or purchase order.

d. This DID is related to DI-SESS-81000E, DI-SESS-81002F and DI-SESS-81003E. This DID supersedes DI-SESS-81001D.