Introduction to Software Engineering Part 1
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Questions and Answers

What is the primary reason why software engineering is crucial in today's economy?

  • Because it is a field that requires minimal investment and yields high returns
  • Because the economies of all developed nations are dependent on software (correct)
  • Because software development is a solo activity that does not require teamwork
  • Because it is a rapidly growing field with many job opportunities

    • According to the Standish Group's 2015 report, what percentage of projects were delivered on time, on budget, with the required features and functions?

  • 51% of all projects
  • 39% of all projects (correct)
  • 61% of all projects
  • 21% of all projects

    • What is a major problem identified in the Standish Group's reports on software projects?

  • Poor or lack of user involvement (correct)
  • Lack of advanced technology
  • Inadequate team size
  • Insufficient funding

    • What fraction of GNP does software expenditure represent in developed countries?

    <p>A significant fraction</p> Signup and view all the answers

    What is the primary concern of software engineering?

    <p>Theories, methods, and tools for professional software development</p> Signup and view all the answers

    What percentage of software projects were either cancelled before delivery or delivered but never used, according to the Standish Group's reports?

    <p>18% of all projects</p> Signup and view all the answers

    What is the primary limitation of the waterfall model in software development?

    <p>It does not allow for accommodating changes after the process is underway.</p> Signup and view all the answers

    In which type of projects is the waterfall model most commonly used?

    <p>Large systems engineering projects developed at multiple sites.</p> Signup and view all the answers

    What is the advantage of the waterfall model in terms of coordination?

    <p>It facilitates coordination of work in large systems engineering projects.</p> Signup and view all the answers

    What is the sequence of phases in the waterfall model?

    <p>Requirements Analysis and Definition, System and Software Design, Implementation and Unit Testing, Integration and System Testing, Operation and Maintenance.</p> Signup and view all the answers

    What is the main advantage of using the waterfall model in software development?

    <p>It is not mentioned in the text.</p> Signup and view all the answers

    What is the primary characteristic of the waterfall model in terms of phase completion?

    <p>A phase has to be complete before moving onto the next phase.</p> Signup and view all the answers

    What is the primary focus of the software design activity?

    <p>Defining the overall system structure and component relationships</p> Signup and view all the answers

    Which software process activity involves converting the system specification into an executable system?

    <p>Software Implementation</p> Signup and view all the answers

    What is the primary focus of architectural design?

    <p>Identifying the overall system structure and component relationships</p> Signup and view all the answers

    Which design activity involves defining the interfaces between system components?

    <p>Interface Design</p> Signup and view all the answers

    What is the relationship between software design and implementation activities?

    <p>They are closely related and may be inter-leaved</p> Signup and view all the answers

    What is the primary focus of requirements validation?

    <p>Checking the validity of system requirements</p> Signup and view all the answers

    What is a major advantage of the Incremental and Iterative Model compared to the waterfall model?

    <p>It reduces the cost of accommodating changing customer requirements</p> Signup and view all the answers

    What is a challenge of the Incremental and Iterative Model?

    <p>The process is not visible, making it hard to measure progress</p> Signup and view all the answers

    What is a benefit of the Incremental and Iterative Model in terms of customer feedback?

    <p>Customers can comment on demonstrations of the software and see how much has been implemented</p> Signup and view all the answers

    What is a consequence of not refactoring the software in the Incremental and Iterative Model?

    <p>Regular change tends to corrupt the system structure</p> Signup and view all the answers

    What is a benefit of the Incremental and Iterative Model in terms of deployment?

    <p>Deployment is more rapid and cost-effective</p> Signup and view all the answers

    What is a problem with documentation in the Incremental and Iterative Model?

    <p>It is not cost-effective to produce documents that reflect every version of the system</p> Signup and view all the answers

    What is the primary focus of system engineering?

    <p>All aspects of computer-based systems development</p> Signup and view all the answers

    What is a system's boundary?

    <p>The conceptual line that divides the system from its environment</p> Signup and view all the answers

    What is the consequence of software's malleability?

    <p>Software is under constant pressure to be changed rather than replaced</p> Signup and view all the answers

    Which of the following is an example of a system's environment?

    <p>The external factors that affect the system</p> Signup and view all the answers

    What is the result of increasing software complexity?

    <p>Increased errors in the software</p> Signup and view all the answers

    What is a domain in the context of system engineering?

    <p>A particular area of interest</p> Signup and view all the answers

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