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The PDR demonstrates that the preliminary design meets all system requirements with acceptable risk and within the cost and schedule constraints and establishes the basis for proceeding with detailed design. It will show that the correct design options have been selected, interfaces have been identified, and verification methods have been ...
A design review is a milestone within a product development process whereby a design is evaluated against its requirements in order to verify the outcomes of previous activities and identify issues before committing to—and, if need be, to re-prioritise—further work. [1]
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The SDR is a technical review conducted to evaluate the manner in which a project's system requirements have been allocated to configuration items, manufacturing considerations, next phase planning, production plans, and the engineering process that produced the allocation. This review is conducted when the system definition is at a point where ...
The engineering design process, also known as the engineering method, is a common series of steps that engineers use in creating functional products and processes. The process is highly iterative – parts of the process often need to be repeated many times before another can be entered – though the part(s) that get iterated and the number of such cycles in any given project may vary.
The preliminary design review evaluates the adequacy of the preliminary design. In the following phase, detailed design is drawn and coded for the system as a whole and all the subsystems, and a critical design review is performed where it is evaluated whether the design is sufficiently detailed to fabricate, integrate, and test the system. [1] [2]
Preliminary Design Review, a step in the engineering design process; Purchase of development rights — see Conservation easement; Petition for Discretionary Review - In appellate law, a way of seeking review by a higher court when no appeal of right exists
The preliminary design review was originally planned to be completed by June 2017. [5] While NASA received three inquiries for its August 2017 request for proposals, Lockheed was the sole bidder. [6] On April 2, 2018, NASA awarded Lockheed Martin a $247.5 million contract to design, build and deliver in late 2021 the Low-Boom X-plane.