DID- Support System Specification (SSSPEC)

Keywords DID support support specification support system

6.2.3 Section 3 – Requirements General This section shall be divided into the following paragraphs (ie, 3.1 – 3.19) to specify the system requirements, that is, those characteristics of the Support System that are conditions for its Acceptance. The degree of detail to be provided shall be guided by the following rule: include those characteristics of the Support System that are conditions for Acceptance; defer to design descriptions those characteristics that the acquirer is willing to leave up to the developer. If there are no requirements in a given paragraph in the specification, the paragraph shall so state. If a given requirement fits into more than one paragraph, it may be stated once and referenced from the other paragraphs. Each requirement shall be stated in such a way that an objective verification method can be defined for it. Each requirement shall identify one or more verification methods to be used to determine conformance with the SSSPEC (in the Verification Cross Reference Matrix (VCRM)). The SSSPEC shall incorporate the requirements and constraints that apply to the Support System (eg, performance, design, interoperability, reliability, and user personnel skill levels). This requirements section shall be written so that compliance with all requirements will ensure the suitability of the Support System for its intended purpose, and non-compliance with any requirement will indicate unsuitability for the intended purpose. Only requirements that are necessary, measurable, achievable, and verifiable shall be included.

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