10 U.S. Code § 2446b. Requirement to address modular open system approach in program capabilities development and acquisition weapon system design
(a) Program Capability Document.—A program capability document for a major defense acquisition program shall identify and characterize—
the extent to which requirements for system performance are likely to evolve during the life cycle of the system because of evolving technology, threat, or interoperability needs; and
for requirements that are expected to evolve, the minimum acceptable capability that is necessary for initial operating capability of the major defense acquisition program.
(b) Analysis of Alternatives.—
The Director of Cost Assessment and Performance Evaluation, in formulating study guidance for analyses of alternatives for major defense acquisition programs and performing such analyses under section 139a(d)(4) of this title, shall ensure that any such analysis for a major defense acquisition program includes consideration of evolutionary acquisition, prototyping, and a modular open system approach.
(c) Acquisition Strategy.—In the case of a major defense acquisition program that uses a modular open system approach, the acquisition strategy required under section 2431a of this title shall—
clearly describe the modular open system approach to be used for the program;
clearly describe the evolution of major system components that are anticipated to be added, removed, or replaced in subsequent increments;
clearly describe how intellectual property and related issues, such as technical data deliverables, that are necessary to support a modular open system approach, will be addressed; and
(d) Request for Proposals.—
The milestone decision authority for a major defense acquisition program that uses a modular open system approach shall ensure that a request for proposals for the development or production phases of the program shall describe the modular open system approach and the minimum set of major system components that must be included in the design of the major defense acquisition program.
(e) Milestone B.—A major defense acquisition program may not receive Milestone B approval under section 2366b of this title until the milestone decision authority determines in writing—
(1) in the case of a program that uses a modular open system approach, that—
2017—Subsec. (e). Pub. L. 115–91 substituted “in writing—” for “in writing that—” in introductory provisions and inserted “, that” after “open system approach” in introductory provisions of par. (1).