超星 - 作业6.3

A.the strategic and tactical goals that a business establishes for itself that software must align with.
B.the detailed set of requests that the proposed information system must meet to be successful.
C.the planning documents identifying the characteristics and functionality of the proposed information system.
D.the logical designs for the proposed information system.

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单选题

39.What is the difference between extreme programming (XP) and the agile methodology to software development?

A.XP focuses on component-base development; the agile methodology focuses on the RAD.
B.XP uses prototyping; the agile methodology does not.
C.Agile methodology involves users much more than XP.
D.XP focuses more on team coding; the agile methodology focuses on limiting project scope.

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单选题

36.Which of the following methodologies emphasizes extensive user involvement in the rapid and evolutionary construction of working prototypes?

A.SDLC
B.Waterfall modeling
C.Project scoping
D.Rapid application development (RAD)

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热力学第一定律表明：

有人设计了一台卡诺热机，每循环一次可从400K的高温热源吸热1800J，向300K的低温热源放热800J，对外作功1000J，这样的设计是

在温度分别为 227℃和27℃的高温热源和低温热源之间工作的热机，理论上的最大效率为

一定量的理想气体，从起始状态经历绝热膨胀体积增加一倍，再经过等压过程，温度回升到起始温度，最后再经过等温过程，回到起始状态。则在此循环过程中

一热机由温度为727℃的高温热源吸热，向温度为27℃的低温热源放热，若热机在最大可能效率下工作、且吸热2千焦耳，热机作功等于

空调器在夏季制冷是制冷机原理，而在冬季制热是热机原理。

19.When IT specialists and end users meet in one location to define and review the business requirements of a proposed system, the meeting is called a ____.

17.Business requirements are:

39.What is the difference between extreme programming (XP) and the agile methodology to software development?

36.Which of the following methodologies emphasizes extensive user involvement in the rapid and evolutionary construction of working prototypes?