Software Engineering-1

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MBA Solved assignments

Part A – Question for solution

Q1 Differentiate between Data Interpretation and Data Sufficiency.

Q2 State the difference between COCOMO and COCOMO II model.

Q3 Discuss the difference between verification and validation and explain why validation is a particularly difficult process

Q4 Write short notes on software quality assurance.

Q5. Compare all software life cycle models you have studied so far.

Q6. Give a chart specifying all types of cohesion and coupling.

Part B – Question for Solution

Q1 Why Size Oriented metrics is not universally accepted as the best way to measure the process of software development?

Q2 What are the main risk factors which may be encountered in the development of software?

Q3 Give a suitable definition of software quality and briefly describe the rationale for your definition.

CASE STUDY for Solution

Your company has been awarded a contract to develop Child Care Software for Neñios Day Care Center (NCC). The software should maintain a database of Family, Child, and Payroll information. Users of the software shall have the ability to add/update/delete all information based on their access levels. All employees (managers, teachers, admin staff, etc.) will be identified by a unique login ID and given a default password. The employee first and last name should be stored.

The general requirements for the software are as follows:

  • Any changes in the database (add or update) the user ID and time of change should be stored on the record.
  • The system must respond to all requests within 20 seconds.
  • A web-based solution.
  • The ability for an employee to update the password is optional.
  • The software shall support the ability to store, update, maintain, and delete of Family & Child Information, Family and Child Billing, and Payroll information as specified in Amendment A.

Amendment A

Family and Child InformationStore and track child, parent and family information Data including but not limited to:

  • Parent names, addresses, phone numbers, email addresses, emergency contacts, authorized pick ups, etc.
  • Child Name, Birth Date, Class, Special Needs, Photo, etc.
  • Immunization tracking information: recording immunization types, physicals and dates
  • Classroom Tracking & Scheduling
  • Classrooms, programs, activities, schedules, etc
  • Immunization Software, Alerts you when an immunization is needed and prints reports showing immunization dates and immunization due notices for parents.
  • Waiting List & Potential Customer Tracking
  • Daily Reminders, upcoming appointments, contract renewals, etc.
  • Customer Log Notes, Maintain records of correspondence with parents, child’s special needs, incident reports, and more.
  • Reports:
    • Call Sheets, Sign In & Out Sheets
    • Customer Directories
    • Daily Classroom & Center Enrollment Reports
    • Birthday Lists & Child Age Reports
    • Parent/Child Cross Reference Reports
    • Family Registration Information
    • Immunization Due & History Reports
    • Child Enrollment/Withdrawal Reporting
    • Child Notes & Comments Reports

Family and Child Billingtrack each family’s balance including their child care billing history of registration fees, tuition charges, family discounts and payments received:

  • Billing History, history of registration fees, tuition charges, family discounts and payments.
  • Late Fees & Balance Due Notices, late payment fees and print balance due notices to all families who are past due.
  • Receipt Printing
  • Reports:
    • Customer Account Balance (Notice)
    • Account Activity Report
  • Billing of tuition based on actual attendance (Attendance Tracking).
  • Overtime and hourly billing for late pick ups and extra hours

Payroll,

  • Pay check, Calculates pay period hours, determines gross pay, applies all withholdings, and prints checks
  • Overtime
  • Withholds and reports tax information such as state, federal, SUTA, FUTA, and FICA
  • Reports
    • Employee Earnings Withholdings Summary (W2)
    • Total Revenue Reports

Security,

  • Login is required for all users
  • Users can be divided into groups and access is granted on a per group basis(for example you may want to allow only the managers group to view, update, or delete payroll information)

 

 

 

Q1: Prepare SRS & proposed a model to do the job?

Q2: Generate test cases for the above study.

Q3 Generate cost estimation factor for the case study.

Part – C – Question for Solution

1. Verification is:
a. Checking that we are building the right system
b. Checking that we are building the system right
c. Performed by an independent test team
d. Making sure that it is what the user really wants

2. A regression test:
a. Will always be automated
b. Will help ensure unchanged areas of the software have not been affected
c. Will help ensure changed areas of the software have not been affected
d. Can only be run during user acceptance testing

3. If an expected result is not specified then:
a. We cannot run the test
b. It may be difficult to repeat the test
c. It may be difficult to determine if the test has passed or failed
d. We cannot automate the user inputs

4. Which of the following could be a reason for a failure
1) Testing fault
2) Software fault
3) Design fault
4) Environment Fault
5) Documentation Fault
a. 2 is a valid reason; 1,3,4 & 5 are not
b. 1,2,3,4 are valid reasons; 5 is not
c. 1,2,3 are valid reasons; 4 & 5 are not
d. All of them are valid reasons for failure

5. Test are prioritized so that:
a. You shorten the time required for testing
b. You do the best testing in the time available
c. You do more effective testing
d. You find more faults

6. Which of the following is not a static testing technique
a. Error guessing
b. Walkthrough
c. Data flow analysis
d. Inspections

6. Which of the following is not a static testing technique
a. Error guessing
b. Walkthrough
c. Data flow analysis
d. Inspections

7. Which of the following statements about component testing is not true?
a. Component testing should be performed by development
b. Component testing is also know as isolation or module testing
c. Component testing should have completion criteria planned
d. Component testing does not involve regression testing

8. During which test activity could faults be found most cost effectively?
a. Execution
b. Design
c. Planning
d. Check Exit criteria completion

9. Which, in general, is the least required skill of a good tester?
a. Being diplomatic
b. Able to write software
c. Having good attention to detail
d. Able to be relied on

10. The purpose of requirement phase is
a. To freeze requirements
b. To understand user needs
c. To define the scope of testing
d. All of the above

11. The process starting with the terminal modules is called –
a. Top-down integration
b. Bottom-up integration
c. None of the above
d. Module integration

12. The inputs for developing a test plan are taken from
a. Project plan
b. Business plan
c. Support plan
d. None of the above

13. Function/Test matrix is a type of
a. Interim Test report
b. Final test report
c. Project status report
d. Management report

14. Defect Management process does not include
a. Defect prevention
b. Deliverable base-lining
c. Management reporting
d. None of the above

15. What is the difference between testing software developed by contractor outside your country, versus testing software developed by a contractor within your country?
a. Does not meet people needs
b. Cultural difference
c. Loss of control over reallocation of resources
d. Relinquishments of control

16. Software testing accounts to what percent of software development costs?
a. 10-20
b. 40-50
c. 70-80
d. 5-10

17. A reliable system will be one that:
a. Is unlikely to be completed on schedule
b. Is unlikely to cause a failure
c. Is likely to be fault-free
d. Is likely to be liked by the users

18. How much testing is enough
a. This question is impossible to answer
b. The answer depends on the risks for your industry, contract and special requirements
c. The answer depends on the maturity of your developers
d. The answer should be standardized for the software development industry

19. Which of the following is not a characteristic for Testability?
a. Operability
b. Observability
c. Simplicity
d. Robustness

20. Cyclomatic Complexity method comes under which testing method.
a. White box
b. Black box
c. Green box
d. Yellow box

21. Which of these can be successfully tested using Loop Testing methodology?
a. Simple Loops
b. Nested Loops
c. Concatenated Loops
d. All of the above

22. To test a function, the programmer has to write a ______, which calls the function and passes it test data.
a. Stub
b. Driver
c. Proxy
d. None of the above

23. Equivalence partitioning is:
a. A black box testing technique used only by developers
b. A black box testing technique than can only be used during system testing
c. A black box testing technique appropriate to all levels of testing
d. A white box testing technique appropriate for component testing

24. When a new testing tool is purchased, it should be used first by:
a. A small team to establish the best way to use the tool
b. Everyone who may eventually have some use for the tool
c. The independent testing team
d. The vendor contractor to write the initial scripts

25. Inspections can find all the following except
a. Variables not defined in the code
b. Spelling and grammar faults in the documents
c. Requirements that have been omitted from the design documents
d. How much of the code has been covered

Q26 Systems analyst should use software tools in their work as

a. all analysts use them

b. they assist in systematic design of systems

c. they are inexpensive

d. they are easily available

 

 

Q27 The primary objective of system design is to

a. design the programs, databases and test plan

b. design only user interfaces

c. implement the system

d. find out how the system will perform

Q28 In which COCOMO model is effort adjusted from rating of cost drivers?

A) Basic COCOMO

B) Intermediate COCOMO

C) Complete COCOMO

D) COCOMO-II

 

Q29) Which of the following is an essential program control structure?

A) Sequence

B) Selection

C) Iteration

D) All of the above

 

Q30 An SRS document normally contains

A) Functional requirements of the system

B) Module structure

C) Configuration management plan

D) All of the above

 

Q31 Which among the following is the worst type of coupling?

A) Data Coupling

B) Stamp Coupling

C) Control Coupling

D) Content Coupling

 

Q32 The primary characteristic of a good design is

A) Low cohesion and high coupling

B) Low cohesion and low coupling

C) High cohesion and low coupling

D) High cohesion and high coupling

 

Q33 Which of the following activities are done in detailed design?

A) Development of pseudo-code for different modules in the form of MSPECs

B) Transaction and transform analyses of DFD

C) Design of module structure

D) All of the above

 

Q34 The workflow behaviour that a system represents can be represented by

A) Sequence diagram

B) Collaboration diagram

C) Class diagram

D) Activity diagram

 

Q35 Which of the following factors has contributed most to software crisis?

A) Large problem size

B) Slow progress in development of hardware

C) Lack of good programmers

D) Use of FORTRAN programming language

 

Q36 During software life cycle, which activity generally consumes the maximum effort?

A) Design

B) Maintenance

C) Testing

D) Coding

 

Q37 What is the spiral model suitable for?

A) Well-acquainted project that needs to be controlled

B) Very large problems

C) Projects whose user requirements are not well understood

D) Challenging software prone to several kinds of risks

Q38 The purpose of Structured Analysis is to

A) Determine the structure of system as perceived by users

B) Determine the structure of the solution for implementation/coding

C) All of the above

 

Q39 Which of the following is a characteristic of modular design?

A) It is difficult to understand

B) If there is one module all other modules need to be changed

C) It makes the system difficult to maintain

D) It makes the system easy to modify

 

Q40 What is the Evolutionary model very useful for?

A) Well-acquainted project that needs to be controlled

B) Very large problems

C) Projects whose user requirements are not well understood

D) Challenging software prone to several kinds of risks