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 ina project?A analysisB designC codingD testing2 The first step in project planning is toA determine software scopeB select project team leaderC determine the budgetD determine the process model3 Which factors are important when choosing a project team leader?A managerial identityB outstanding programming abilityC problem solving abilityD ability of communicating to other people4 The importance of software design can be summarized in a single word:A accuracyB complexityC efficiencyD quality5 Cohesion is a qualitative indication of the degree to which a moduleA can be written more compactlyB is connected to other modules and the outside worldC is able to complete its function in a timely mannerD focuses on just one thing6 Notations for depicting procedural detail includeA box diagramB ER diagramC flow chartD decision table7 The best reason for using independent software test teams is thatA software developers do not need to do any testingB testers do not get involved with the project until testing beginsC strangers will test the software mercilesslyD the conflicts of interest between developers and testers is reduced8Which of the following items is not the software engineeringlayers?A. ProgrammingB. qualityC. MethodsD. Tools9What are the three generic phases of softwareengineering?A. definition, development, supportB. what, how, whereC. programming, debugging, maintenanceD. analysis, design, testing10The Water-Fall process model of software development isA. 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 use1The Water-Fall model2The prototyping model3The spiral model4Any model12There are three important risks which we must focus on them carefully. They areA business risks, personnel risks, budget risksB project risks, technical risks, business risksC planning risks, technical risks, personnel risksD management risks, technical risks, design risks13 key concept of quality control is that all workproducts1are delivered on time and under budget2have complete documentation3have measurable specifications for process outputs4are thoroughly tested before delivery to the customer14 What task is not performed as part of software requirementsanalysis?1evaluation and synthesis2modeling and problem recognition3planning and scheduling4specification and review15The entity relationshipdiagram1depicts relationships between data objects2depicts functions that transform the data flow3indicates how data are transformed by the system4indicates system reactions to external events16Which of the following is not an area of concern in the design model?1architecture2data3interfaces4project scope17 Which of following is a characteristic of a gooddesign?1exhibits strong coupling between its modules2implements all requirements in the analysis model3includes test cases for all components4incorporates source code for descriptive purposes18 Software reliability problems can almost always be tracedto1errors in requirements gathering2errors in design and implementation3human error4errors in operation19Which of the following need to be assessed during unittesting?A.algorithmic performanceB.code stabilityC.execution and error handlingD.all of the above20Which of the following is an approach todebugging?A.backtrackingB.brute forceC.cause eliminationD.all of the aboveB.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 therequirement 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;elseaverage=-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.。