A) CorrectB) IncorrectC) CorrectD) CorrectE) IncorrectF) Incorrect
The concept of coupling between building blocks is crucial in software architecture, and the iSAQB® SOFTWARE ARCHITECTURE – FOUNDATION LEVEL provides guidance on this topic. Here’s an analysis of the statements based on the curriculum:
A) A high degree of coupling of a building block reduces its reusability: This is correct. High coupling means that a building block is heavily dependent on other components, which can limit its ability to be reused in different contexts1.
B) Low coupling of a building block improves the ability to meet functional requirements: This statement is incorrect. While low coupling can contribute to a more maintainable and flexible architecture, it does not directly improve the ability to meet functional requirements1.
C) Low cohesion often leads to high coupling: This is correct. Cohesion refers to how closely related the responsibilities of a module are. Low cohesion can result in modules that perform a wide range of actions, which often leads to higher coupling with many other modules1.
D) Loose coupling often leads to less effort for making changes: This is correct. Loose coupling allows for easier modification of a system with minimal impact on other components, thus reducing the effort required for changes1.
E) For call dependencies, the degree of coupling is independent of the direction of the call: This statement is incorrect. The degree of coupling can be affected by the direction of the call, as it determines which module controls the interaction1.
F) In object-oriented programming languages, inheritance reduces coupling: This statement is incorrect. Inheritance can actually increase coupling because it creates a direct dependency between the superclass and the subclass1.
These insights are aligned with the principles outlined in the iSAQB® SOFTWARE ARCHITECTURE – FOUNDATION LEVEL curriculum, which emphasizes the importance of understanding and managing coupling for effective software architecture design1.
