Defect prevention strategies in Testing Fundamentals - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main goal of defect prevention in software testing?

The main goal of defect prevention is to stop defects from occurring in the first place by improving processes and practices before the software is built.

beginner

Name two common defect prevention strategies.

Two common defect prevention strategies are code reviews and early requirement analysis to catch issues before coding starts.

intermediate

How does training help in defect prevention?

Training helps by teaching developers and testers best practices and standards, reducing mistakes caused by lack of knowledge.

intermediate

Explain the role of root cause analysis in defect prevention.

Root cause analysis finds the underlying reasons defects happen so teams can fix those causes and prevent similar defects in the future.

beginner

Why is early testing considered a defect prevention strategy?

Early testing finds defects soon after they are introduced, making it easier and cheaper to fix them before they cause bigger problems.

Which of the following is NOT a defect prevention strategy?

A Ignoring minor bugs

B Code reviews

C Root cause analysis

D Training developers

Ignoring minor bugs does not prevent defects; it allows defects to remain and possibly cause bigger issues later.

What is the benefit of performing requirement analysis early?

A It helps identify defects before coding

B It reduces the need for testing

C It increases the number of defects

D It delays the project timeline

Early requirement analysis helps find defects in requirements, preventing defects from being coded into the software.

Root cause analysis helps teams to:

A Fix defects without understanding why they happened

B Ignore defects that are hard to fix

C Find and fix the underlying causes of defects

D Create more defects intentionally

Root cause analysis focuses on understanding and fixing the real reasons defects occur to prevent recurrence.

Which activity is a proactive defect prevention technique?

A Fixing bugs after testing

B Performing code reviews during development

C Waiting for user feedback

D Skipping documentation

Code reviews during development help catch defects early, preventing them from progressing further.

Training developers on coding standards helps prevent defects by:

A Delaying the project

B Increasing the number of defects

C Making code harder to read

D Reducing mistakes caused by lack of knowledge

Training improves knowledge and skills, which reduces errors and defects in code.

Describe three key strategies used to prevent defects in software development.

Think about activities done before and during coding to avoid mistakes.

Explain how root cause analysis contributes to defect prevention.

Consider why defects happen repeatedly and how to stop that.