Testing Goals and Validation vs. Defect Testing

This quiz covers the two main goals of testing, validation and defect testing

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Views #: 187

Questions #: 11

Time: 10 minutes

Pass Score: 80.0%

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Primary Goals of Software Testing

1 pts

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When testing software, a tester is trying to achieve two distinct goals. Which of the following correctly states both goals?

Demonstrate the software meets requirements, and find inputs where behavior is incorrect or undesirable

Find all defects, and rewrite poorly structured modules

Eliminate all bugs, and document the source code thoroughly

Demonstrate the software meets requirements, and measure code execution speed

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Validation Testing Definition

1 pts

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Which statement best describes validation testing?

Testing performed only after system deployment in the production environment

Testing where the system is expected to perform correctly using test cases that reflect expected use

Testing where the tester checks internal code paths and logic branches

Testing where test cases are designed to expose defects using deliberately obscure inputs

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Defect Testing Definition

1 pts

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Which of the following are true about defect testing? Select all that apply.

Defect testing guarantees a defect-free system when all tests pass

Test cases are designed to expose defects

Test cases must reflect how the system is normally used

The goal is to find inputs that cause incorrect or undesirable behavior

Test cases can be deliberately obscure

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Input-Output Model of Program Testing

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The diagram below illustrates the input-output model of program testing. Study the diagram and answer: what does the subset I_e represent?

The set of inputs that cause anomalous or erroneous system behavior

The set of inputs outside the system's normal operational range

The set of inputs that produce correct outputs

The set of all valid inputs the system can accept

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Priority in Defect Testing

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In defect testing, what is the primary priority when selecting test inputs?

Find inputs that test the most frequently used features first

Find inputs in the set Iₑ that reveal problems with the system

Find inputs that demonstrate normal system functionality

Find inputs that maximize code coverage across all modules

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Dijkstra's Famous Testing Principle

1 pts

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Complete the famous statement about testing attributed to Edsger Dijkstra: "Testing can only show the (1) of errors, not their (2)."

Please drag and drop the selected option in the right place or type it instead

absence

number

location

presence

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Validation vs. Verification

1 pts

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To complete the line match

Click on an item in the first group
Click on an item in the second group
To delete a match, double click on a line

Question

Are we building the product right?

Are we building the right product?

Concept

Verification

Validation

Match each question to the correct V&V concept it represents.

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Goal of Verification and Validation

1 pts

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What is the overall goal of verification and validation processes in software development?

To measure the number of defects per thousand lines of code

To produce complete test documentation for regulatory compliance

To eliminate all program defects before delivery

To establish confidence that the software system is fit for purpose

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Factors Affecting Required Confidence Level

1 pts

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Options

×Safety-critical vs. prototype system

×Competing products and time-to-market

×Users tolerating failures due to perceived benefits

Software Purpose

Marketing Environment

User Expectations

Three factors determine the level of confidence required from V&V processes. Classify each item into the correct factor category.

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Boundary Between Validation and Defect Testing

1 pts

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Which of the following statements correctly describe the relationship between validation testing and defect testing? Select all that apply.

During validation testing, defects may also be found

Validation testing and defect testing are completely separate with no overlap

Defect testing always uses the same inputs as validation testing

There is no definite boundary between the two approaches

During defect testing, some tests may show the program meets its requirements

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What Testing Executes

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Complete the following statement about what software testing involves: "When you test software, you execute a program using (1) data and check the results for errors, anomalies, or information about the program's (2) attributes."

Please drag and drop the selected option in the right place or type it instead

real

functional

artificial

non-functional

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Undergraduate Professional

Primary Goals of Software Testing

Correct Answer

Explanation

Validation Testing Definition

Correct Answer

Explanation

Defect Testing Definition

Correct Answer

Explanation

Input-Output Model of Program Testing

Correct Answer

Explanation

Priority in Defect Testing

Correct Answer

Explanation

Dijkstra's Famous Testing Principle

Correct Answer

Explanation

Validation vs. Verification

Question

Concept

Correct Answer

Explanation

Goal of Verification and Validation

Correct Answer

Explanation

Factors Affecting Required Confidence Level

Correct Answer

Explanation

Boundary Between Validation and Defect Testing

Correct Answer

Explanation

What Testing Executes

Correct Answer

Explanation

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