Advantages of Top-Down Integration in Software Engineering
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Questions and Answers

Which type of integration testing involves designing a test driver to integrate the lowest-level modules?

  • Functional Integration Testing
  • Top-Down Integration Testing
  • Incremental Integration Testing
  • Bottom-Up Integration Testing (correct)

    • What is one advantage of top-down integration testing?

  • Engineers can observe system-level functions
  • Isolation of interface errors becomes easier
  • Test cases are reused during regression tests
  • All of the above (correct)

    • What is one disadvantage of top-down integration testing?

  • It may not be possible to observe meaningful system functions
  • Test case selection becomes difficult
  • Stub design becomes difficult
  • All of the above (correct)

    • Which type of integration testing involves integrating modules starting from the top-level module?

    <p>Top-Down Integration Testing</p> Signup and view all the answers

    Which type of integration testing involves reusing test cases during regression tests?

    <p>Top-Down Integration Testing</p> Signup and view all the answers

    Which type of integration testing involves the use of stubs?

    <p>Top-Down Integration Testing</p> Signup and view all the answers

    Which type of integration testing involves the integration of modules starting from the lowest-level modules?

    <p>Bottom-Up Integration Testing</p> Signup and view all the answers

    Which type of testing aims to discover any defects that may arise when the modules are integrated and must interact with each other?

    <p>Integration testing</p> Signup and view all the answers

    What is another name for Integration Testing?

    <p>String testing</p> Signup and view all the answers

    What is the objective of system integration testing (SIT)?

    <p>To build a working version of the system</p> Signup and view all the answers

    What is the advantage of integration testing?

    <p>Relatively fast testing process</p> Signup and view all the answers

    What is the granularity of inter-system testing?

    <p>High-level testing</p> Signup and view all the answers

    Which approach to integration testing involves integrating modules in an incremental manner as a series of test cycles?

    <p>Incremental</p> Signup and view all the answers

    In top-down integration testing, what is the purpose of regression tests?

    <p>To test the combined modules in the presence of a new module</p> Signup and view all the answers

    Which type of testing focuses on testing individual program units or modules in isolation?

    <p>Unit Testing</p> Signup and view all the answers

    What is the main difference between Unit Testing and Integration Testing?

    <p>Unit Testing focuses on testing individual program units, while Integration Testing focuses on testing the interaction between different components.</p> Signup and view all the answers

    What is the purpose of Integration Testing?

    <p>To test the interaction between different components of a software application.</p> Signup and view all the answers

    Which testing level involves testing individual program units, such as procedures, functions, and methods, in isolation?

    <p>Unit Testing</p> Signup and view all the answers

    What is the relationship between Unit Testing and Integration Testing?

    <p>Unit Testing and Integration Testing complement each other in ensuring proper software functionality.</p> Signup and view all the answers

    When is Integration Testing typically performed in the software development life cycle?

    <p>After Unit Testing and before System Testing</p> Signup and view all the answers

    What is the purpose of Integration and Testing (I&T)?

    <p>To test the interaction between different components of a software application</p> Signup and view all the answers

    Which approach integrates a system using a mix of top-down, bottom-up, and big-bang approaches?

    <p>Sandwich Integration Testing</p> Signup and view all the answers

    Which type of integration testing is more useful to test low-level modules that are often invoked by other modules?

    <p>Bottom-Up Integration Testing</p> Signup and view all the answers

    What is the disadvantage of Big Bang Integration Testing?

    <p>Difficult to track and monitor testing progress</p> Signup and view all the answers

    Which type of integration testing is applied to integrate the modules in the bottom-layer of a hierarchical system?

    <p>Bottom-Up Integration Testing</p> Signup and view all the answers

    What is the advantage of Sandwich Integration Testing?

    <p>Top and bottom layer tests can be done in parallel</p> Signup and view all the answers

    Which category of System Integration Tests ensures that a completely integrated system works together from end-to-end?

    <p>End-to-end validity</p> Signup and view all the answers

    What is the disadvantage of Top-Down Integration Testing?

    <p>Does not test individual subsystems thoroughly</p> Signup and view all the answers

    Which type of integration testing designs the behavior of a test driver by simplifying the behavior of the actual module?

    <p>Top-Down Integration Testing</p> Signup and view all the answers

    What is the disadvantage of Sandwich Integration Testing?

    <p>Does not test individual subsystems thoroughly before integration</p> Signup and view all the answers

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