首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
计算机
The purpose of a programming system is to make a computer easy to use.To do this,it fumishes languages and various facilities th
The purpose of a programming system is to make a computer easy to use.To do this,it fumishes languages and various facilities th
admin
2018-05-26
40
问题
The purpose of a programming system is to make a computer easy to use.To do this,it fumishes languages and various facilities that are in fact programs invoked and controlled by language features.But these facilities are bought at a price:the external description of a programming system is ten to twenty times as large as the external description of the computer system itself.The user finds it far easier to specify any particular function,but there are far more to choose from,and far more options and formats to remember.
Ease of use is enhanced only if the time gained in functional specification exceeds the time lost in learning,remembering,and searching manuals.With modem programming systems this gain does exceed the cost,but in recent years the ratio of gain to cost seems to have fallen as more and more complex
(1)
have been added.
Because ease of use is the purpose,this ratio of function to conceptual complexity is the ultimate test of system design.Neither function alone nor simplicity alone
(2)
a good design.
This point is widely misunderstood.Function,and not simplicity,has always been the measure of excellence for its designers.As soon as ease of use is held up as the criterion,each ofthese is seen to be
(3)
,reaching for only halfofthe true goal.
For a given level of function,however,that system is best in which one can specify things with the most simplicity and straightforwardness.
(4)
is not enough.Mooers’s TRAC language and Algol 68 achieve simplicity as measured by the number of distinct elementary concepts.They are not,however,straightforward.The expression of the things one wants to do often requires involuted(复杂的)and unexpected combinations ofthe basic facilities.It is not enough to learn the elements and rules of combination;one must also learn the idiomatic usage,a whole lore of how the elements are combined in practice.Simplicity and straightforwardness proceed from conceptual
(5)
.Every part must reflect the same philosophies and the same balancing of desiderata.Every part must even use the same techniques in syntax and analogous notions in semantics.Ease of use,then,dictates unity of design,conceptual integrity.
(4)
选项
A、Function
B、System
C、Straightforwardness
D、Simplicity
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/0jUZ777K
本试题收录于:
信息系统管理工程师上午基础知识考试题库软考中级分类
0
信息系统管理工程师上午基础知识考试
软考中级
相关试题推荐
阅读以下叙述,回答问题【说明】某信息技术有限公司中标了某大型餐饮连锁企业集团的信息系统项目,该项目包含单店管理、物流系统和集团ERP等若干子项目。由该信息技术有限公司的高级项目经理张工全面负责项目实施。张工认为此项目质量管理的关键在于系统
阅读以下叙述,回答问题【说明】J公司2008年3月中标某市公安局的人口管理系统开发项目,因该市要在2008年11月举办某大型国际会议,因此公安局要求人口管理系统一定要在2008年7月1日之前投入使用。强某是负责这个项目的项目经理,虽然他进
阅读以下叙述,回答问题【说明】一个预算100万元的项目,为期12周,现在工作进行到第八周。已知成本预算是64万元,实际成本支出是68万元,挣值为54万元。对以下四幅图表,分别分析其所代表的效率、进度和成本等情况,针对每幅图表所反映的问
阅读下列说明,回答问题1至问题4,将解答填入答题纸的对应栏内。【说明】为了解决传统人工抄表方式费时、费力,准确性和及时性得不到保障的问题,某市电力公司准备在其市区及各县实施远程无线抄表系统,代替人工抄表。A公司承接了该无线抄表系统项目。王某是A
下列要素中,不属于.DFD的是(21)。当使用DFD对一个工资系统进行建模时,(22)可以被认定为外部实体。
某企业拥有多个应用系统,分别采用不同的语言和平台独立构建而成,企业需要集成来自不同系统的数据,并使用可定制格式的数据频繁地、立即地、可靠地、异步地传输数据。以下集成方式,最能满足这种要求的是(19)。
项目范围是否完成和产品范围是否完成分别以(4)作为衡量标准。
Rapid application development (RAD) systems purport to lighten the developer’s(41) by making it easy to program an application w
若某计算机系统是由1000个元器件构成的串联系统,且每个元器件的失效率均为10-7/H,在不考虑其他因素对可靠性的影响时,该计算机系统的平均故障间隔时间为(15)小时。
Documentationofasoftwarepackageisnormallyproducedfortwopurposes.Oneistoexplainthe(71)ofthesoftwareanddescribeho
随机试题
白居易《长恨歌》:遂令天下父母心,__________。
生脉散中人参的功用
烟酸的另外一个常用名是()。
支托长度应为()
A、持载和固定B、湿润和聚拢C、温和和熟腐D、使万物运动和保持干燥E、为万物运动和生长提供空间火元的功能是
王某,男,舱岁。因心房纤颤住院治疗,心率114次/分,心音强弱不等,心律不规则,脉搏弱,且极不规则。此时护士应如何准确观察脉搏与心率
()是一个动态的概念,其数值总是与具体的时间联系在一起。
合同法律关系是指由合同法律规范所调整的,在民事流转过程中所产生的( )关系。
以权谋私
A=BOOK1B=BOOK2C=BOOK3D=BOOK4Whichbook(s)say(s)that...theclimateaffectsthefuturesustainableagricultural
最新回复
(
0
)