Software Testing and Quality Assurance (Error, Bug, Fault)
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The document explains the concepts of error, bug, and fault in software development, highlighting that errors are human mistakes, bugs are programming errors found before production, and faults are deviations from expected results. It categorizes different types of errors and bugs, such as syntax and logic errors, and discusses the relationship between defect and failure in the development process. Errors found by testers are called defects, which become bugs when acknowledged by developers, and a failure occurs when a build does not meet requirements.
Software Testing and Quality Assurance (Error, Bug, Fault)
- 1. Error Bug Fault (Relationship with Defect & Failure) 1
- 2. What is Error? The Error is a human mistake. An Error appears not only due to the logical mistake in the code made by the developer. Types of Errors: - Syntactic Errors Calculation Errors Error Handling Errors Hardware Errors For Example. Syntax Error Caused in the Coding By Development Team. 2
- 3. What is Bug? A bug is nothing but a programming error found in an application before it goes into production. Types of Bugs: - Algorithm Bugs (Division By Zero) Logic Bugs (Infinite Loop Having No Termination Point) Resource Bugs (Uninitialized Variables) 3
- 4. What is Fault? Fault is defined as the deviation from the actual and expected result of application or software. Reasons for Fault: - Any deviation from the customer requirements is called as Fault. By giving wrong input may lead to Fault. Any error in logic code may lead to Fault. 4
- 5. Relationship Between Defect & Failure 5 1) Error found by tester is called defect 2) Defect accepted by development team is called Bug. 3) Build does not meet the requirements then it is Failure.
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