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OMG Exam OMG-OCUP2-FOUND100 Topic 7 Question 12 Discussion
Topic #: 7
Choose the correct answer:
A structured class called System has two parts called Subsystem 1 and Subsystem2 respectively, as shown in the class diagram fragment below:
Which of the following diagrams contains an equivalent definition of System?
A)
B)
C)
D)
In a UML sequence diagram, a lifeline is identified by a box at the top of a dashed line that represents the presence of an individual participant in an interaction. The box contains the name of the lifeline, and optionally, it can include the object name and its classifier type.
In the diagram provided, the leftmost lifeline is labeled v[1]:B, which denotes an instance named v[1] of the classifier B. The name of the property that the lifeline represents is v[1], as B is the type of the object that the lifeline represents, and m represents a message, not a lifeline.
Therefore, the correct answer is:
A . v[1]
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