题目内容：
根据下列题干，回答题：The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable （ 1 ） of the technical requirements for the software product. During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each （ 2 ）that it must meet. The starting point is usually a set of high level requirements from the （ 3 ） that describe the project or problem.
In either case, the requirements definition team formulates an overall concept for the system and then defines （ 4 ） showing how the system will be operated publishes the system and operations concept docu-ment and conducts a system concept review(SCR).
Following the SCR,the team derives （ 5 ）require ments for the system from the high level require- ments and the system and operations conceptusing structured or object - oriented analysis, the team speci- fies the software functions and algorithms needed to satisfy each detailed requirement.
请选择（ 1 ）处最佳答案
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