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Which test approach will best fit a new project, with little documentation and high probability for bugs?
Exploratory testing is an approach to testing that emphasizes learning, test design and test execution at the same time. Exploratory testing relies on the tester's skills, creativity and intuition to explore the software under test and discover defects. Exploratory testing is suitable for a new project with little documentation and high probability for bugs, as it can help uncover unknown requirements, assumptions and risks. Exploratory testing is not requirements based testing, which is an approach to testing that derives test cases from documented requirements or specifications. Requirements based testing is not feasible for a new project with little documentation, as it requires clear and complete requirements to be available. Exploratory testing is not metric based approach, which is an approach to testing that uses quantitative measures to monitor and control the testing process and evaluate the quality of the software product. Metric based approach is not effective for a new project with high probability for bugs, as it may not capture all aspects of quality and may lead to false confidence or unrealistic expectations. Exploratory testing is not regression testing, which is an approach to testing that verifies that previously tested software still performs correctly after changes. Regression testing is not relevant for a new project with no previous versions or baselines. Verified Reference: [A Study Guide to the ISTQB Foundation Level 2018 Syllabus - Springer], Chapter 5, page 47-48.
To be able to define testable acceptance criteria, specific topics need to be addressed. In the table below are the topics matched to an incorrect description. Match the topics (the left column) with the correct description (the right column)
Topic Description
A: Functional behaviour A: How the system performs the specific behaviour.
8: Quality characteristics B: A sequence of actions between an external actor and the system, to accomplish a specific goal or business task.
C: Scenarios C: The externally observable behaviour with user actions as input operating under certain configurations.
D: Business rules D; Description of the connections between the system to be developed and the outside world.
E: External interfaces E: Activities that can only be performed in the system under certain conditions defined by outside procedures and constraints.
The correct matching of the topics with their descriptions is as follows:
Functional behaviour: The externally observable behaviour with user actions as input operating under certain configurations (A to C).
Quality characteristics: How the system performs the specific behaviour (B to A).
Scenarios: A sequence of actions between an external actor and the system, to accomplish a specific goal or business task (C to B).
Business rules: Activities that can only be performed in the system under certain conditions defined by outside procedures and constraints (D to E).
External interfaces: Description of the connections between the system to be developed and the outside world (E to D).
Which one of the following statements correctly describes the term 'debugging'?
Debugging is the development activity that finds, analyses and fixes defects. Unlike testing, which aims to identify defects in the software, debugging is the process that developers use to locate and correct the errors found during testing. This involves diagnosing the root causes of these defects and making necessary code changes to resolve them. Debugging is a critical part of the development cycle and ensures that the software functions correctly after defects are fixed.
In which of the following test documents would you expect to find test exit criteria described9
Test exit criteria are the conditions that must be fulfilled before concluding a particular testing phase. These criteria act as a checkpoint to assess whether we have achieved the testing objectives and are done with testing1. Test exit criteria are typically defined in the test plan document, which is one of the outputs of the test planning phase. The test plan document describes the scope, approach, resources, and schedule of the testing activities. It also identifies the test items, the features to be tested, the testing tasks, the risks, and the test deliverables2. According to the ISTQB Certified Tester Foundation Level Syllabus v4.0, the test plan document should include the following information related to the test exit criteria3:
The criteria for evaluating test completion, such as the percentage of test cases executed, the percentage of test coverage achieved, the number and severity of defects found and fixed, the quality and reliability of the software product, and the stakeholder satisfaction.
The criteria for evaluating test process improvement, such as the adherence to the test strategy, the efficiency and effectiveness of the testing activities, the lessons learned and best practices identified, and the recommendations for future improvements.
Therefore, the test plan document is the most appropriate test document to find the test exit criteria described. The other options, such as test design specification, project plan, and requirements specification, are not directly related to the test exit criteria. The test design specification describes the test cases and test procedures for a specific test level or test type3. The project plan describes the overall objectives, scope, assumptions, risks, and deliverables of the software project4. The requirements specification describes the functional and non-functional requirements of the software product5. None of these documents specify the conditions for ending the testing process or evaluating the testing outcomes. Reference = ISTQB Certified Tester Foundation Level Syllabus v4.0, Entry and Exit Criteria in Software Testing | Baeldung on Computer Science, Entry And Exit Criteria In Software Testing - Rishabh Software, Entry and Exit Criteria in Software Testing Life Cycle - STLC [2022 Updated] - Testsigma Blog, ISTQB releases Certified Tester Foundation Level v4.0 (CTFL).
Which of the following are valid testing principles?
I) Exhaustive testing is in general impossible.
II) Exhaustive testing should be executed for code intended to be reused.
III) Testing may guarantee that a program is correct.
IV) Testing cannot guarantee that a program is correct.
V) Defects cluster together in certain areas of the product.
Statements I, IV and V are valid testing principles according to the ISTQB syllabus. Statement I states that exhaustive testing is in general impossible, because it would require testing all possible inputs, outputs and combinations of states, which is usually impractical or impossible. Statement IV states that testing cannot guarantee that a program is correct, because testing can only show the presence of defects, not their absence. Statement V states that defects cluster together in certain areas of the product, which means that some modules or functions are more likely to contain defects than others. Statements II and III are invalid testing principles. Statement II states that exhaustive testing should be executed for code intended to be reused, which contradicts statement I . Statement III states that testing may guarantee that a program is correct, which contradicts statement IV . Verified Reference: A Study Guide to the ISTQB Foundation Level 2018 Syllabus - Springer, pages 4-5.
