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Quality Attributes and Scenarios Flashcards

7 cards from real CPSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. In iSAQB quality scenario structure, the 'artifact' refers to:

    Answer: The specific part of the system (component, module, or whole system) that is stimulated

    The artifact identifies which part of the system the scenario applies to, such as a specific service, database, or the entire system.

  2. A system that degrades gracefully under overload by shedding non-critical requests is exhibiting which quality attribute?

    Answer: Fault tolerance (sub-characteristic of Reliability)

    Fault tolerance means the system continues operating, possibly in a degraded mode, in the presence of faults or overload conditions.

  3. Which quality characteristic in ISO 25010 includes 'appropriateness recognizability', 'learnability', and 'user error protection'?

    Answer: Usability

    Usability in ISO 25010 encompasses sub-characteristics related to how effectively and satisfactorily users can interact with the system.

  4. Which statement about quality attribute trade-offs is TRUE?

    Answer: High security measures can negatively impact performance and usability

    Security controls such as encryption and authentication add overhead, which can increase latency and reduce system usability.

  5. A 'general scenario' for availability would look like:

    Answer: An external actor causes a fault; the system continues operating in degraded or full mode within a specified time

    General scenarios use abstract, non-system-specific language to describe the pattern, while concrete scenarios fill in the specifics.

  6. Which of the following is a sub-characteristic of Maintainability in ISO 25010?

    Answer: Modularity

    Modularity is a Maintainability sub-characteristic reflecting the degree to which a system is composed of discrete components that minimizes the impact of changes.

  7. When stakeholders say 'the system must be secure', an architect should FIRST:

    Answer: Refine the vague goal into concrete quality scenarios with measurable response measures

    Vague quality goals must be converted into concrete scenarios with specific stimuli, environments, and measurable response criteria before architecture decisions can be made.