问题 问答题

软件需求规格说明书应具有完整性、无歧义性、正确性、可验证性、可修改性等特性,其中最重要的是______。

答案

参考答案:正确性

解析: 软件需求规格说明书是确保软件质量的有力措施,衡量软件需求规格说明书质量好坏的标准、标准的优先级及标准的内涵是:
①正确性。体现待开发系统的真实要求。
②无歧义性。对每一个需求只有一种解释,其陈述具有唯一性。
③完整性。包括全部有意义的需求,功能的、设计的、性能的、约束的属性或外部接口等方面的需求。
④可验证性。描述的每一个需求都是可以验证的,即存在有限代价的有效过程验证确认。
⑤一致性。各个需求的描述不矛盾。
⑥可理解性。需求说明书必须简明易懂,尽量少包含计算机的概念和术语,以便用户和软件人员都能接受它。
⑦可修改性。SRS的结构风格在需求有必要改变时是易于实现的。
③可追踪性。
其中最重要的、放在第一位的就是正确性。

完形填空

请阅读以下就餐者的信息,然后匹配就餐者和适合他们的餐厅。选项中有一项是多余选项。把答案填在答卷上的相应位置。

Doctors Say Most Heart Disease Preventable

Heart disease is the number one killer, worldwide, of men and women over the age of 60. But people of all ages die of heart attacks each year. And while death rates have declined in the U.S. and many western European countries, they are on the rise in the developing world. __小题1:___.

No one would have guessed that Barbara Teng would have a heart attack. She was not overweight. She did not smoke or exercise. “In 2004, the week after I turned 49, when I was on a business trip in Chicago, I had a major heart attack," she said. _小题2:  . She now exercises daily, and monitors her heart health.

Dr. Patrice Nickens, who is with the National Heart, Lung and Blood Institute, thinks that heart disease is 82 percent preventable. “___小题3:__,” she said, “Men are also facing the same problem, and the key to staying healthy is knowing your numbers”.

“Your weight, your blood cholesterol, blood sugar and your blood pressure are important numbers that can help you take action and reduce your risk,” she said.

___小题4:__

“And the steps to take are simple: don’t smoke, maintain a healthy weight, exercise, know your numbers and talk to your physician and control these risks,” she said.

African-Americans are at higher-than-average risk for heart disease and stroke; people don't even know they have it, which increases the risk. Medstar Washington Hospital Center is trying to reach this population.   _小题5:  . For example, helping the people monitor their blood pressure. If people realize they are at risk for heart disease, they'll make lifestyle changes: lose weight, exercise, eat the right foods and keep in touch with a doctor

A.A healthy lifestyle can prevent heart disease

B.Lack of exercise causes heart attacks

C.It is the leading cause of death for women

D.With the right training, they can play an important role in community healthE. And that changed her life

F. Yet most heart disease is preventable.

单项选择题 A1/A2型题