The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable (87) 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 (88) that it must meet. The starting point is usually a set of high-level requirements from the (89) that describe the project or problem.
In either case, the requirements definition team formulates an overall concept for the system and the defines (90) showing how the system will be operated, publishes the system and operation concept documents, and conducts a system concept review (SCR).
Following the SCR, the team derives (91) requirements for the system from the highlevel requirements and the system operations concept. Using structured or object-oriented analysis,the team specifies the software functions and algorithms needed to satisfy each detailed requirements.

A. producer B. customer
C. programmerD. analyser

2006年一季度国内生产总值

 注：绝对额按现价计算，增长速度按不变价计算。

 注：绝对额按现价计算，增长速度按不变价计算。

2006年一季度，初步核实时，三大产业中国内生产总值比初步核算时，唯一数据变小的产业是什么产业，且小了多少（）

A．第一产业，42亿元

B．第二产业，1亿元

C．第三产业，36亿元

D．第三产业，1亿元