- Bug: An error or flaw in the software causing unexpected behavior.
- Defect: A deviation from requirements found during the UAT, impacting user experience.
- Briefly highlight key differences.
Roles and Responsibilities:
- Business Acceptance Testing (BAT) Analyst: Reviews requirements, identifies any misalignments in the final product.
- User Acceptance Testing (UAT) Analyst: Validates the end product meets business needs, helps identify defects.
- Developers: Identify bugs during coding, fix issues reported, and improve code quality.
- Quality Assurance (QA): Runs multiple testing rounds, finds both bugs and defects.
- Scrum Master: Facilitates meetings where issues like bugs and defects are discussed, helping prioritize resolutions.
- Product Owner (PO): Ensures the product meets requirements and customer expectations.
Bug vs. Defect: Key Comparisons
- Purpose: Bugs reflect coding flaws, while defects often stem from requirement misunderstandings.
- Timing: Bugs are generally caught earlier (within development), whereas defects surface in UAT or live environments.
- Resolution Approach: Bugs require code-level fixes, whereas defects may require requirement refinement.
| Aspect | Bug | Defect |
|---|---|---|
| Nature | Error in code causing unintended behavior | Failure to meet user requirements |
| Discovered By | Developers, QA team during testing phases | BAT, UAT analysts, end-users during UAT or production |
| Resolution Focus | Fix code-level issues | Align features with requirements |
| Impact on SDLC | Affects coding and unit testing stages | Impacts release and client satisfaction stages |
| Role Involvement | Developers, QA | UAT, BAT, QA, Product Owner |
Lifecycle of a Bug vs. a Defect
- Bug Lifecycle: Discovery, Logging, Prioritization, Fix, Retest, Closure.
- Defect Lifecycle: Identification, Analysis, Priority Assessment, Requirement Re-evaluation, Fix, Verification, Closure.
Common Scenarios and Resolutions
- Scenario-based examples showing the differences in handling bugs vs. defects, highlighting the roles.
Best Practices for Managing Bugs and Defects:
- Communication between teams (BAT, UAT, Devs, QA, Scrum Master, PO).
- Prioritizing and tracking bugs and defects efficiently.
- Conducting regular retrospectives for continuous improvement.