四川大学软件工程期末

A.Multiple choice (Only one is correct): ( 20*2%=40%)

1 Approximately which activity listed below will consume the least amount of time in

a project?

A analysis

B design

C coding

D testing

2 The first step in project planning is to

A determine software scope

B select project team leader

C determine the budget

D determine the process model

3 Which factors are important when choosing a project team leader?

A managerial identity

B outstanding programming ability

C problem solving ability

D ability of communicating to other people

4 The importance of software design can be summarized in a single word:

A accuracy

B complexity

C efficiency

D quality

5 Cohesion is a qualitative indication of the degree to which a module

A can be written more compactly

B is connected to other modules and the outside world

C is able to complete its function in a timely manner

D focuses on just one thing

6 Notations for depicting procedural detail include

A box diagram

B ER diagram

C flow chart

D decision table

7 The best reason for using independent software test teams is that

A software developers do not need to do any testing

B testers do not get involved with the project until testing begins

C strangers will test the software mercilessly

D the conflicts of interest between developers and testers is reduced

8Which of the following items is not the software engineering

layers?

A. Programming

B. quality

C. Methods

D. Tools

9What are the three generic phases of software

engineering?

A. definition, development, support

B. what, how, where

C. programming, debugging, maintenance

D. analysis, design, testing

10The Water-Fall process model of software development is

A. A reasonable approach when requirements are well defined.

B. A good approach when a working program is required quickly.

C.The best approach to use for projects with large development teams.

D.An old fashioned model that is rarely used any more.

11If customers cannot define requirements clearly, the developer should use

1The Water-Fall model

2The prototyping model

3The spiral model

4Any model

12There are three important risks which we must focus on them carefully. They are

A business risks, personnel risks, budget risks

B project risks, technical risks, business risks

C planning risks, technical risks, personnel risks

D management risks, technical risks, design risks

13 key concept of quality control is that all work

products

1are delivered on time and under budget

2have complete documentation

3have measurable specifications for process outputs

4are thoroughly tested before delivery to the customer

14 What task is not performed as part of software requirements

analysis?

1evaluation and synthesis

2modeling and problem recognition

3planning and scheduling

4specification and review

15The entity relationship

diagram

1depicts relationships between data objects

2depicts functions that transform the data flow

3indicates how data are transformed by the system

4indicates system reactions to external events

16Which of the following is not an area of concern in the design model?

1architecture

2data

3interfaces

4project scope

17 Which of following is a characteristic of a good

design?

1exhibits strong coupling between its modules

2implements all requirements in the analysis model

3includes test cases for all components

4incorporates source code for descriptive purposes

18 Software reliability problems can almost always be traced

to

1errors in requirements gathering

2errors in design and implementation

3human error

4errors in operation

19Which of the following need to be assessed during unit

testing?

A.algorithmic performance

B.code stability

C.execution and error handling

D.all of the above

20Which of the following is an approach to

debugging?

A.backtracking

B.brute force

C.cause elimination

D.all of the above

B.True or false. (10*2%=20%)

1Software is a product and can be manufactured using the same technologies used for other engineering artifacts.

2Customers, end-users, practitioners, project managers and sales people are all considered as players in the software process.

3 A good software is flexible, so it can easily accommodate changes brought up with the

requirement change.

4We should consider the implementation view first during software requirements analysis.

5Every computer-based system can be modeled as an information transform using an input-processing-output template.

6Test cases should be designed long before testing begins.

7Recovery testing is a system test that forces the software to fail in a variety of ways and verifies that software is able to continue execution without interruption.

8Adding more people to a project that is already behind schedule is a good way to catch up.

9Change cannot be easily accommodated in most software systems, unless a system was designed with change in mind.

10 A consideration of software scope must include an evaluation of all external interfaces.

C.Short answer: (4*5%=20%)

1What are main contents in a project plan?

2Please describe the differences between the verification and validation?

3What are the characteristics of testable software?

4What is the SQA? Describe its role in software development.

5Please give explanations on why requirements elicitation is so difficult.

D.Answer the following questions in detail: (2*10%=20%)

1As a modern software project manager, what must you do to begin a project? Please briefly describe the major activities of project management.

2Given a procedure for computing the average of positive numbers:

i=0;

sum=0;

input a;

do while a!=0 {

if (a>0){

i++;

sum+=a;

}

input a;

}

if(i>0)

average=sum/i;

else

average=-999;

Please:

(1) draw the corresponding flow graph;

(2) tell the cyclomatic complexity of the procedure; and

(3) list all the independent paths for basis path testing.