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The epic described is broad and encompasses a system that involves multiple stakeholders and vehicle types, indicating that it is not a small piece of work that can be completed in a short iteration. This violates the ‘Small’ criterion of INVEST, which states that stories should be the smallest piece of work that delivers useful functionality to fit within an iteration12. Additionally, the epic’s acceptance criteria apply to all user stories derived from it, suggesting that the stories are not independent of each other, as changes to one could affect the others. This goes against the ‘Independent’ criterion, which emphasizes that stories should be self-contained to avoid delays caused by dependencies12.

References = The INVEST criteria are a set of guidelines used to evaluate the quality of user stories and epics in Agile development. They ensure that the stories are well-defined and suitable for Agile practices, focusing on creating value through independent, negotiable, valuable, estimable, small, and testable stories123.

 A good practice in test automation for a regression-averse approach is to increase automated test coverage. This allows the team to ensure that as many features as possible are being tested automatically, which can help in identifying regressions early. Moreover, by automating the regression tests, testers can dedicate more time to exploratory testing, which is crucial for discovering issues that automated tests may not catch. Exploratory testing is an approach that relies on the tester’s creativity and experience, and it is an essential complement to automated regression testing123.

References = The ISTQB Advanced Level Agile Technical Tester documents and the resources available at Software Testing Help emphasize the importance of comprehensive test automation in Agile environments. They suggest that increasing automated test coverage is beneficial for maintaining software quality and allowing testers to focus on exploratory testing, which is a critical aspect of a thorough testing strategy45678.

 Option D is written in correct Gherkin format and is appropriate for the User Story. It clearly states the precondition (three Purchase Orders with a total value of £21.75 have been placed), the action taken by the Purchasing Manager (requesting the list of Purchase Orders placed this month), and the expected outcome (the 3 orders and their total value of £21.75 are displayed). This scenario directly addresses the Purchasing Manager’s desire to see a list of all Purchase Orders placed so far this month with their total value, which aligns with the User Story’s goal of controlling the amount of money being spent.

References = ISTQB Advanced Level Agile Technical Tester documents and Training resources12.

Test automation is a key component in Agile development, particularly in the context of continuous deployment and delivery. The level of test automation can indeed influence and potentially constrain the frequency of code deployments. This is because the extent and robustness of automated tests determine how quickly and reliably new code can be pushed to production. If the test automation is not comprehensive or reliable, it may require additional manual testing or cause delays in deployment. Conversely, a high level of test automation can support more frequent and confident deployments by ensuring that new changes do not break existing functionality.

References = The ISTQB Advanced Level Agile Technical Tester syllabus discusses the importance of test automation in Agile projects, including its impact on continuous deployment and delivery12.

The mnemonic FIRST is used to describe good unit tests in Agile software development. Each letter stands for a quality that the tests should possess:

F - Fast: Tests should run quickly.

I - Isolated: Tests should not depend on each other.

R - Repeatable: Tests should yield the same results every time.

S - Self-Validating: Tests should have a boolean output (pass or fail).

T - Thorough: Tests should cover every part of the code.

Option D correctly states the meanings of the letters IRST in the context of the FIRST mnemonic.

References = The ISTQB Advanced Level Agile Technical Tester documents outline the importance of the FIRST principles in creating effective unit tests within Agile projects. These principles ensure that the tests are reliable and can be used in continuous integration and deployment processes12.

The ISTQB Advanced Level Agile Technical Tester syllabus emphasizes the importance of optimizing Continuous Integration (CI) processes in Agile environments. Option C suggests reducing the extent to which automated tests interact with the user interface and instead using technical interfaces, which is often faster as it bypasses the GUI layer. Additionally, running a subset of tests during the day and the rest overnight can help manage the CI process without overloading the system during peak hours. These strategies align with the best practices for maintaining efficient CI cycles and ensuring that the CI process remains sustainable as the number of tests grows with the product.

References = The ISTQB Advanced Level Agile Technical Tester documents and training resources provide guidelines on test automation approaches and continuous deployment and delivery, which are relevant to optimizing CI processes12. Moreover, best practices for continuous testing in Agile suggest prioritizing tests that provide fast feedback and running extensive test suites outside of peak hours3.

 Acceptance Test-Driven Development (ATDD) is a collaborative approach that involves customers, developers, and testers to define acceptance criteria before development begins. This practice helps ensure that all stakeholders have a shared understanding of the requirements and can prevent misunderstandings like those experienced in the first release. By using examples in ATDD, the team can clarify what the software should do, which aligns with the user stories and supports the Test-Driven Development (TDD) process12.

References = The ISTQB Advanced Level Agile Technical Tester documents and resources from Software Testing Help discuss the benefits of ATDD in aligning team members and stakeholders on the expected outcomes of user stories, which is particularly useful when there have been previous misunderstandings34.

In Agile development, requirements engineering techniques are crucial for understanding and defining user needs and system requirements. The issues identified in the user story suggest the use of Personas and Storyboards. Personas are fictional characters created based on user research to represent different user types within a targeted demographic, attitude, and behavior set. They help in understanding various user needs and experiences, which is reflected in issue 1 and 2. Storyboards, on the other hand, are visual representations of a user’s interaction with the product, providing a narrative of how the product is used. They help in visualizing the process and identifying any missing elements, such as the lack of specified acceptance criteria for the booking process speed (issue 3) and the details on how confirmation is sent (issue 4). The need for a stub to test the payment method (issue 5) also aligns with the storyboard technique, which can help visualize the integration points and dependencies.

References = The ISTQB Advanced Level Agile Technical Tester syllabus and study resources provide insights into various requirements engineering techniques and their application in Agile environments12. These resources emphasize the importance of understanding user stories and acceptance criteria, which are key to uncovering the issues mentioned34567.

Table 2 provides the best test coverage because it includes tests for adding a non-existent member (Member4), which should result in an error, and it also tests for removing a member and then deleting the group, which is the correct sequence of actions according to the requirements. The other tables either do not test all the required scenarios or have actions in the wrong order (e.g., attempting to delete the group before removing all members). References = ISTQB Advanced Level Agile Technical Tester documents and Training resources.