Lecture-1 Intro to Software Testing

What is the main purpose of software testing?

• To find and fix all bugs before the software is released

• To make the software perfect

• To make the software more expensive

• To ensure the software works as expected under specified conditions

What is the difference between a software error and a software failure?

• A software failure is a flaw in the code, while a software error is when the system doesn't perform its intended functions

• There is no difference, both terms are used interchangeably

• They both refer to the same thing

• A software error is a flaw in the code, while a software failure is when the system doesn't perform its intended functions

What is the real-world impact of software failures?

• It has no real impact, as software failures are rare

• It can cause significant harm and financial losses

• It only affects the software developers

• It can lead to minor inconveniences

What is the goal of Software Verification?

• Evaluate the software's overall quality and value

• Confirm that the software is fit for purpose

• Confirm that the product meets user needs

• Ensure compliance with specifications

How do testing and validation relate to each other?

• Testing is used to ensure software meets the customer’s needs, while validation focuses on functionality

• Testing and validation are completely separate processes

• Testing identifies defects, and validation ensures that the software meets overall requirements

• Validation focuses on finding bugs, and testing focuses on performance

What is one of the key challenges in software testing and validation?

• Clear and complete requirements

• Limited resources

• Consistent user feedback

• Excessive time available for testing

What is the primary difference between verification and validation?

• Verification checks if the software meets the specified requirements, while validation checks if the software meets the user’s needs

• Verification focuses on whether the software meets the customer’s needs, while validation checks if the software meets specifications

• Verification ensures the software is suitable for its intended use, while validation focuses on compliance with specifications

• Verification is an external process, while validation is internal

Which of the following best describes the term "bug" in software development?

• A defect in the hardware

• An error in human action producing an incorrect result

• A software failure that makes the system unable to perform its intended function

• A code defect causing unexpected behavior

Choose the correct option:

• Errors - human action producing incorrect result.
  Bugs - code defects causing unexpected behaviour.
  Failures - software unable to perform intended function (as result of bug or error).

• Errors - code defects causing unexpected behaviour.
  Bugs - human action producing incorrect result.
  Failures - software unable to perform intended function (as result of bug or error).

• Errors - software unable to perform intended function (as result of bug or error).
  Bugs - code defects causing unexpected behaviour.
  Failures - human action producing incorrect result.

• Errors - human action producing incorrect result.
  Bugs - software unable to perform intended function (as result of bug or error).
  Failures - code defects causing unexpected behaviour.

Verification and Validation

• Verification: are we building the software right?
  
  Validation: are we building the right software?

• Verification: are we building the right software?
  
  Validation: are we building the software right?

• Both refer to the same thing.

• None