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

For a building block, the characteristics visible only in the whitebox view are:

• Code structure of the building block (D)
• Algorithms used in the building block (E)
• Implementation details for the security requirements of the building blocks (G)

The blackbox view suffices for:

• Public interfaces of the building block (A)
• Test coverage based on unit tests for sub building blocks contained in the building block (B)
• Test coverage based on integration tests ©
• Security requirements of the building blocks (F)

In software architecture, the whitebox view reveals the internal workings of a building block, including its code structure, algorithms, and specific implementation details1. This view is essential when the internal structure and behavior of the component need to be understood or modified.

On the other hand, the blackbox view treats the building block as an opaque entity, focusing on its exposed interfaces and observable behaviors without revealing its internal structure2. This view is sufficient for understanding what the building block does from an external perspective, such as its public interfaces and how well it performs its functions as determined by testing.

Here’s a breakdown of the characteristics:

• Whitebox View:
• Blackbox View:

References:

• arc42 Documentation on Building Block View1.
• Stack Overflow discussion on the difference between black box and white box in component diagrams2.
• Flylib Section on Black-Box and White-Box Component Views3.

To demonstrate the suitability of building blocks for implementing a use-case scenario effectively, UML (Unified Modeling Language) diagrams are instrumental. Among the options:

• B: Sequence diagram is the most suitable choice because it shows how objects interact in a particular scenario of a use case, detailing the sequence of messages exchanged between objects to accomplish the functionality described in the use case. This makes it ideal for demonstrating the dynamic behavior of the system components in the scenario.

References:

Iterative and incremental design methods are fundamental in software development, allowing for flexibility, better risk management, and focused delivery of functional components.

• A: Iterations involve repeated cycles of design, development, and testing, which help manage and resolve uncertainties as more knowledge is gained throughout the project lifecycle.
• B: The iterative process facilitates early detection of design and integration issues, as feedback can be incorporated promptly to refine the system progressively.
• F: Incremental design focuses on delivering functional increments of the product, ensuring that key functionalities are developed and delivered in priority order, allowing for early testing and refinement.