A Bug is a software defect or error. Characteristics include:
Definition:
- Unexpected or incorrect behaviour
- Deviation from requirements or specifications
Types:
- Functional bugs: Incorrect feature behaviour
- Performance bugs: Slow or inefficient operation
- Security bugs: Vulnerabilities in the system
Causes:
- Coding errors
- Design flaws
- Misunderstood requirements
Impact:
- User experience issues
- System crashes or failures
- Data integrity problems
Resolution:
- Identification through testing
- Analysis and reproduction
- Code fixes and verification
Bugs are inevitable in software development and require systematic detection and resolution.