题目详情

在嵌入式系统软件的开发过程中往往采取各种措施来提高软件的易维护性。如采用良好的编程风格有助于提高软件的易理解性;()有助于提高软件的易修改性。

  • A.高效的算法
  • B.信息隐蔽原则
  • C.增强健壮性
  • D.身份认证

正确答案及解析

正确答案
B
解析

对于源程序的质量要求,最基本的就是正确性和可靠性,除此之外,更要注重程序的易使用性、易维护性和易移植性。易使用性就是要对用户友好,便于用户使用,做到少培训甚至零培训;易维护性包括易理解性、易测试性和易修改性;移植性则指程序从某一环境移植到另一环境的能力。信息隐蔽是开发整体程序结构时使用的法则,即将每个程序的成分隐蔽或封装在一个单一的设计模块中,定义每一个模块时尽可能少地显露其内部的处理。信息隐蔽原则对提高软件的可修改性、可测试性和可移植性都有重要的作用。

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