Testing Goals and Validation vs. Defect Testing

Primary Goals of Software Testing

1 pts

volume_mute

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

Find all defects, and rewrite poorly structured modules

Demonstrate the software meets requirements, and measure code execution speed

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

Eliminate all bugs, and document the source code thoroughly

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Validation Testing Definition

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Which statement best describes validation testing?

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

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

Testing where the tester checks internal code paths and logic branches

Testing performed only after system deployment in the production environment

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Defect Testing Definition

1 pts

volume_mute

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 can be deliberately obscure

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

Test cases are designed to expose defects

Test cases must reflect how the system is normally used

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Input-Output Model of Program Testing

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volume_mute

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 outside the system's normal operational range

The set of inputs that cause anomalous or erroneous system behavior

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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volume_mute

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

Find inputs that maximize code coverage across all modules

Find inputs that demonstrate normal system functionality

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

Find inputs that test the most frequently used features first

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Dijkstra's Famous Testing Principle

1 pts

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

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location

absence

number

presence

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Validation vs. Verification

1 pts

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

To complete the line match

Click on an item in the first group
Click on the match in the second group

To delete a match, double click on a line

Question

Are we building the right product?

Are we building the product right?

Concept

Validation

Verification

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Goal of Verification and Validation

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volume_mute

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

To eliminate all program defects before delivery

To establish confidence that the software system is fit for purpose

To measure the number of defects per thousand lines of code

To produce complete test documentation for regulatory compliance

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Factors Affecting Required Confidence Level

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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

volume_mute

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

There is no definite boundary between the two approaches

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

Defect testing always uses the same inputs as validation testing

Validation testing and defect testing are completely separate with no overlap

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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."

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functional

real

non-functional

artificial

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Primary Goals of Software Testing

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Explanation

Validation Testing Definition

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Explanation

Defect Testing Definition

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Explanation

Input-Output Model of Program Testing

Correct Answer

Explanation

Priority in Defect Testing

Correct Answer

Explanation

Dijkstra's Famous Testing Principle

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Explanation

Validation vs. Verification

Question

Concept

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Explanation

Goal of Verification and Validation

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Explanation

Factors Affecting Required Confidence Level

drag and drop the selected option to the right place

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Explanation

Boundary Between Validation and Defect Testing

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Explanation

What Testing Executes

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Explanation

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