CPSA-FL Exam Dumps - ISAQB Certified Professional for Software Architecture -Foundation Level

A) FalseB) FalseC) TrueD) TrueE) TrueF) True

A) Agile approaches make written documentation unnecessary. In such cases, verbal communication can substitute for documentation.

• False. Even in agile approaches, written documentation is important for maintaining a clear and consistent understanding of the architecture among team members and stakeholders1.

B) Written documentation makes verbal reiteration unnecessary.

• False. Verbal communication is essential for clarifying and reinforcing the content of written documentation, especially when addressing complex or nuanced architectural issues2.

C) Despite written documentation, verbal communication of architectural interrelationships is important.

• True. Verbal communication plays a crucial role in explaining the rationale behind architectural decisions and interrelationships that may not be fully captured in documentation2.

D) Documentation and communication should use identical terms and rationale.

• True. Consistency in terminology and rationale between documentation and verbal communication helps prevent misunderstandings and ensures that all parties have a common understanding of the architecture2.

E) Documentation should be created primarily for project participants who either cannot or do not want to read the system’s source code.

• True. Documentation serves as a guide for those who may not be directly involved in coding but need to understand the architecture, such as managers, new team members, or external stakeholders2.

F) Communication and documentation complement each other: verbal communication helps architects determine what must be recorded in writing.

• True. Verbal communication often reveals what aspects of the architecture are most important or confusing to team members, guiding what should be emphasized in written documentation

The white-box view of a software building block provides an in-depth perspective on the internal structure and behavior of the building block.

• A: The dependencies of the internal building blocks of 'foo' are crucial for understanding how changes in one part affect others and for managing future modifications.
• C: The algorithms of the internal building blocks of 'foo' give insight into the logic and operations performed within the block, which is essential for performance analysis and optimization.
• D: The internal building blocks of 'foo' describe the finer-grained components or modules within 'foo', detailing their responsibilities and interactions, fundamental for detailed design and implementation.

The Architecture Tradeoff Analysis Method (ATAM) helps evaluate architecture decisions with respect to quality attributes by producing several key artifacts:

• B: The concrete quality tree illustrates and organizes the quality attributes specific to the architecture being evaluated, showing how generic quality attributes are refined into measurable scenarios.
• C: Description of quality scenarios specifies and documents the scenarios under which the architecture's responses are tested against the desired quality attributes.
• G: List of the architectural risks identifies potential risks in the architecture that may threaten the system’s ability to meet its quality goals, aiding in proactive risk management.

Designing effective interfaces is critical in software architecture, ensuring that they are both usable and robust. The characteristics that generally make interfaces more desirable include:

• A: Easy to extend - An interface should be designed such that it can be extended without breaking existing implementations. This characteristic is important for maintaining backward compatibility while allowing for future growth and changes in requirements.
• C: Clear descriptions of assertions and prerequisites - Interfaces should clearly specify what is required of the caller (prerequisites) and what the interface guarantees in return (assertions). This clarity is vital for ensuring that the interface is used correctly.
• G: Hard to misuse - An interface should be designed in such a way that there is little room for incorrect usage by the client. This involves making the interface intuitive and minimizing the potential for errors, which improves the robustness and reliability of the software system.

These characteristics help in creating interfaces that are not only functional but also robust, maintainable, and adaptable to future needs, aligning with best practices in software architecture.

The statements regarding the design principle ‘information hiding’ that are true and false are as follows:

• True:
• False:

The principle of ‘information hiding’ is a fundamental concept in software engineering that promotes encapsulation and abstraction. Here’s an explanation of each statement:

• True Statements:
• False Statements:

Information hiding is crucial for maintaining a clean and modular architecture, where components can be developed, maintained, and replaced independently.

References:

• Stack Overflow discussion on Abstraction vs Information Hiding vs Encapsulation1.
• Wikipedia article on Information Hiding2.
• Kansas State University textbook excerpt on Information Hiding3.
• Techopedia definition of Information Hiding4.