Summary of Manual Testing Interview Questions and Answers with Examples - Part 2

Main Ideas and Concepts

• Difference between Unit Testing and Integration Testing
  • Unit Testing: Testing the smallest testable parts of the software independently.
  • Integration Testing: Testing the interfaces and interactions between integrated units or modules.
• Approaches of Integration Testing
  • Big Bang Integration Testing: All components are integrated at once.
  • Incremental Integration Testing: Components are integrated one by one.
• Big Bang Integration Testing
  • All components of a system are integrated simultaneously.
  • Advantages:
    • No need for stubs or drivers since all components are ready.
  • Disadvantages:
    • Difficult to trace failures due to simultaneous integration of all components.
• Incremental Integration Testing
  • Components are integrated and tested one at a time.
  • Advantages:
    • Easier to identify issues as fewer modules are integrated at once.
  • Disadvantages:
    • More time-consuming due to potential need for stubs and drivers.
• Difference between Integration Testing and System Testing
  • Integration Testing: Focuses on interactions between modules.
  • System Testing: Tests the entire system’s behavior against functional requirements.
• Difference between System Testing and Acceptance Testing
  • System Testing: Tests the complete system as a whole.
  • Acceptance Testing: Validates if the software meets end-user needs and requirements.
• Types of Acceptance Testing
  • User Acceptance Testing (UAT): Conducted by users to ensure the software fits their needs.
  • Other types include operational Acceptance Testing, compliance Acceptance Testing, alpha testing, and beta testing.
• User Acceptance Testing (UAT)
  • Focuses on validating the functionality and fitness for use of the system by actual users.
  • The UAT environment should closely resemble the production environment.

Methodology and Instructions (Bullet Points)

• Understanding Testing Types:
  • Clarify definitions of Unit Testing, Integration Testing, System Testing, and Acceptance Testing.
• Big Bang Integration Testing:
  • Integrate all components at once.
  • Ensure all components are ready before integration.
  • Test the entire system post-integration.
• Incremental Integration Testing:
  • Integrate and test components one by one.
  • Identify issues more easily due to fewer components being integrated at a time.
  • Be prepared to use stubs and drivers if components are not ready.
• Testing Differences:
  • Differentiating between Integration Testing (focus on module interactions) and System Testing (focus on overall system behavior).
  • Understand the role of Acceptance Testing in validating user requirements.
• Conducting User Acceptance Testing:
  • Engage business users and stakeholders in the testing process.
  • Ensure the UAT environment mirrors the production environment as closely as possible.

Speakers or Sources Featured

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