How is the concept of coupling used to assess model quality?
A.
High coupling leads to good model quality provided all blocks in a structural model exhibit the same average degree of coupling
B.
High coupling leads to poof model quality because it decreases reuse potential and prevents independent modification of system elements
C.
Low coupling leads to poor model quality because all parts of a system must be properly coupled in order to measure the completeness of the model
D.
Coupling has no bearing on model quality because no metrics exist for measuring the level of coupling of SysML models
The Answer Is:
B
This question includes an explanation.
Explanation:
Coupling is a measure of how much a system element depends on other system elements. High coupling means that a change in one element affects many other elements, which makes the system harder to understand, maintain and reuse. Low coupling means that the system elements are more independent and modular, which improves the model quality. References: OMG-Certified Systems Modeling Professional - Model Builder – Advanced (OCUP2-ADV) Examination Guide Version 1.0, Section 4.1.2.2
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