问题 单项选择题

在结构化方法中,软件功能分解属于下列软件开发中的阶段是( )。

A.详细设计

B.需求分析

C.总体设计

D.编程调试

答案

参考答案:C

解析: 软件系统结构的总体设计包括基于功能层次结构建立系统、按功能划分成模块的层次结构、确定每个模块的功能、建立与已确定的软件需求的对应关系、确定模块间的调用关系和模块间的接口、评估模块划分的质量等方面。详细设计的任务是在使用程序设计语言编制程序以前,对所采用算法的逻辑关系进行分析,设计出全部必要的过程细节,并给予清晰的表达。需求分析是指用户对目标软件系统在功能、行为、性能、设计约束等方面的期望;需求分析的任务是发现需求、求精、建模和定义需求,通常包括功能需求、性能需求、环境需求、可靠性需求、安全保密要求、用户界面需求、资源使用需求、成本消耗需求、开发进度需求等。编程调试的任务是诊断和改正程序中潜在的错误。综上所述,软件功能分解只能发生在总体设计阶段。

多项选择题
单项选择题

Many theories concerning the causes of juvenile delinquency(crimes committed by young people) focus either on the individual or on society as the major contributing influence. Theories (91) on the individual suggest that children engage in criminal behavior (92) they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (93) with others. Theories focusing on the role of society suggest that children commit crimes in (94) to their failure to rise above their socioeconomic status, (95) as a rejection of middle, class values.
Most theories of juvenile delinquency have focused on children from disadvantaged families, (96) the fact that children from wealthy homes also commit crimes. The latter may commit crimes (97) lack of adequate parental control. All theories, however, are tentative and are (98) to criticism.
Changes in the social structure may indirectly (99) juvenile crime rates. For example, changes in the economy that (100) to fewer job opportunities for youth and rising unemployment (101) make gainful employment increasingly difficult to obtain. The resulting discontent may in (102) lead more youths into criminal behavior.
Families have also (103) changes these years. More families consist of one-parent households or two working parents; (104) , children are likely to have less supervision at home (105) was common in the traditional family (106) . This lack of parental supervision is thought to be an influence on juvenile crime rates. Other (107) causes of offensive acts include frustration or failure in school, the increased (108) of drugs and alcohol, and the growing (109) of child abuse and child neglect. All these conditions tend to increase the probability of a child committing a criminal act, (110) a direct causal relationship has not yet been established.

A.immune

B.resistant

C.sensitive

D.subject