Risk analysis for testing in Testing Fundamentals - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is risk analysis in software testing?

Risk analysis is the process of identifying and evaluating potential problems that could affect the success of testing. It helps testers focus on the most important areas to test first.

beginner

Name two main factors considered in risk analysis for testing.

The two main factors are the likelihood of a problem happening and the impact it would have if it does happen.

beginner

Why is risk analysis important in testing?

It helps use limited time and resources wisely by focusing on testing the parts of the software that could cause the biggest problems.

intermediate

What is a risk-based testing approach?

Risk-based testing means planning and performing tests based on the risks identified. Tests focus more on high-risk areas and less on low-risk areas.

beginner

Give an example of a risk that might be found during risk analysis.

An example risk could be that a new feature might cause the app to crash, which would affect many users and cause bad reviews.

What two factors are used to prioritize risks in testing?

A Number of testers and tools

B Cost and time

C Likelihood and impact

D Code size and complexity

Risks are prioritized based on how likely they are to happen and how big the impact would be.

Which testing approach focuses on the most risky parts first?

A Risk-based testing

B Regression testing

C Exploratory testing

D Smoke testing

Risk-based testing targets high-risk areas to find serious problems early.

Why should testers perform risk analysis before testing?

A To decide what to test first

B To write code faster

C To avoid testing completely

D To increase the number of test cases

Risk analysis helps testers decide which parts need testing first based on risk.

Which of these is NOT a typical risk factor in testing?

A Impact of failure

B Complexity of the feature

C Likelihood of failure

D Tester’s favorite color

Tester’s favorite color is irrelevant to risk analysis.

If a feature has low risk, what might testers do?

A Ignore it completely

B Test it less thoroughly

C Test it first

D Only test it manually

Low-risk features usually get less testing focus to save time.

Explain how risk analysis helps improve the testing process.

Think about how knowing risks changes what you test first.

Describe what risk-based testing means and why it is useful.

Consider how risk affects test planning.

Practice

1. What is the main purpose of risk analysis in software testing?

easy

A. To write code faster without testing

B. To identify which parts of the software need testing first based on potential problems

C. To create user manuals for the software

D. To design the software's user interface

Solution

1. Step 1: Understand risk analysis goal

   Risk analysis helps testers find which parts of software might cause big problems.

2. Step 2: Connect goal to testing order

   Testing starts with high-risk areas to catch serious issues early.

3. Final Answer:

   To identify which parts of the software need testing first based on potential problems -> Option B

4. Quick Check:

   Risk analysis = prioritize testing by risk [OK]

Hint: Risk analysis = test high-risk parts first [OK]

Common Mistakes:

• Thinking risk analysis is about coding speed
• Confusing risk analysis with documentation
• Believing risk analysis designs UI

2. Which of the following is a correct way to describe risk in testing?

easy

A. Risk is the chance that a feature will be easy to use

B. Risk is how fast the software runs

C. Risk is the likelihood and impact of a problem occurring in the software

D. Risk means the software will never have bugs

Solution

1. Step 1: Define risk in testing context

   Risk means how likely a problem is and how bad its effect would be.

2. Step 2: Match definition to options

   Risk is the likelihood and impact of a problem occurring in the software correctly states risk as likelihood and impact of problems.

3. Final Answer:

   Risk is the likelihood and impact of a problem occurring in the software -> Option C

4. Quick Check:

   Risk = likelihood + impact [OK]

Hint: Risk = chance x impact of problem [OK]

Common Mistakes:

• Confusing risk with software speed
• Thinking risk means no bugs
• Mixing risk with usability

3. Given the following risk scores for features, which feature should be tested first?
Feature A: Impact=5, Likelihood=2
Feature B: Impact=3, Likelihood=4
Feature C: Impact=4, Likelihood=4
Feature D: Impact=2, Likelihood=5

medium

A. Feature C

B. Feature B

C. Feature A

D. Feature D

Solution

1. Step 1: Calculate risk scores

   Multiply impact and likelihood for each feature:
   Feature A: 5x2=10
   Feature B: 3x4=12
   Feature C: 4x4=16
   Feature D: 2x5=10

2. Step 2: Identify highest risk

   Feature C has the highest risk score (16), so test it first.

3. Final Answer:

   Feature C -> Option A

4. Quick Check:

   Highest risk = Feature C (16) [OK]

Hint: Test feature with highest impact x likelihood first [OK]

Common Mistakes:

• Choosing feature with highest impact only
• Choosing feature with highest likelihood only
• Adding instead of multiplying impact and likelihood

4. A tester assigned risk scores as Impact=3 and Likelihood=5 for a feature. Later, they realize the impact should be 5, but they forgot to update the risk score. What is the error in their risk analysis?

medium

A. Incorrect calculation of risk score due to outdated impact value

B. Wrong likelihood value used

C. Risk analysis does not require impact values

D. Risk score should be ignored if updated values are missing

Solution

1. Step 1: Identify the mistake in risk scoring

   The tester used an old impact value (3) instead of the correct one (5).

2. Step 2: Understand effect on risk score

   This causes the risk score to be too low, leading to wrong testing priority.

3. Final Answer:

   Incorrect calculation of risk score due to outdated impact value -> Option A

4. Quick Check:

   Outdated impact causes wrong risk score [OK]

Hint: Always update impact and likelihood before scoring [OK]

Common Mistakes:

• Ignoring impact changes
• Assuming likelihood was wrong
• Thinking risk score can be skipped

5. You have three features with these risk values:
Feature X: Impact=4, Likelihood=3
Feature Y: Impact=5, Likelihood=2
Feature Z: Impact=3, Likelihood=5
If testing time is limited and you can only test two features, which two should you pick to maximize risk coverage?

hard

A. Feature Y and Feature Z

B. Feature X and Feature Y

C. Feature X and Feature Y and Feature Z

D. Feature X and Feature Z

Solution

1. Step 1: Calculate risk scores for all features

   Feature X: 4x3=12
   Feature Y: 5x2=10
   Feature Z: 3x5=15

2. Step 2: Select two features with highest combined risk

   Feature Z (15) and Feature X (12) together cover 27 risk points, higher than other pairs.

3. Final Answer:

   Feature X and Feature Z -> Option D

4. Quick Check:

   Pick top two risk scores for best coverage [OK]

Hint: Pick two features with highest risk scores combined [OK]

Common Mistakes:

• Choosing features with highest impact only
• Selecting features with lowest risk
• Trying to test all three when time is limited