L9 Flashcards
What is software quality
Refers to the degree to which a software product meets specified requirements and user requirements.
What are the 3 areas of software quality
Process Effectiveness
System Efficacy
User satisfaction
Collaborative Quality
Multiple individuals or teams work together to create, maintain, and improve software products.
Motivation for Collaborative Quality
Collaborative development practices significantly impact software quality.
Challenges in Collaborative Quality
Blind spots
Support
Teamwork
Software Testing
Identifies defects, errors, or inconsistencies to verify that the software functions correctly and reliably under various conditions.
Motivation for Software Testing
Improves quality, reliability, and usability while reducing risks and enhancing user satisfaction.
Software Testing Benefits
Cost Savings
Failure Prevention
Software Testing Evolution
Different testing techniques include:
Black Box Testing
White Box Testing
Grey Box Testing
Black Box Testing
Focuses on testing functionality without examining internal structure or code.
Motivation for Black Box Testing
Identify discrepancies between expected and actual behavior
Interact via UI, API, or other interfaces
Validate inputs, outputs, and system behavior
White Box Testing
Also called Structural or Glass Box Testing, focuses on the internal logic, structure, and code.
Motivation for White Box Testing
Ensure correct code implementation
Exercise all paths and conditions
Verify algorithms, data structures, and logic
Grey Box Testing
Testers have limited knowledge of internal structure and implementation.
Motivation for Grey Box Testing
Combine external and internal perspectives
Use high-level design docs, APIs, or database schemas
Blend elements of Black and White Box Testing
How has software testing evolved?
1950s: debugging oriented period
1950-1970s: demonstration oriented period
1970s-1980s: the destruction oriented period
1980s-1990s: The evaluation and prevention oriented period
1990s- today: the test driven oriented period
What is unit testing?
Validates individual code components for correctnes. Conducted by developers. Focuses on inputs, outputs andinternal logic.
What is integration testing?
Validates interaction between integrated components.
What is System testing?
Validates entire software system against requirements. Covers functional and non-functional requirements.
What is acceptance testing?
Validates software from user’s perspective. Ensures alignment with business requirements and user needs
What is regression testing?
Involves retesting previously validated software.
What are the test types.
Functional (specifications)
Smoke (basics)
Security (vulnerabilities and risks)
Performance (speed, reliability..)
Load (multiple users)
Stress (beyond normal)
Usability (UI/UX)
Accessibility (disabilities)
Fairness (Bias and Discrimination)
Localization (Idioms and Regions)
A/B (two system versions)
Beta (real users)
