At the top of each diagram we see the rectangles that represent objects. Here, we have Customer, Video title id, Video id, Check available CD, Membership manager and Rental as Objects.
Descending from each object is a dashed line known as the “lifelineâ€. These lines define the time axis of the diagram...
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At the top of each diagram we see the rectangles that represent objects. Here, we have Customer, Video title id, Video id, Check available CD, Membership manager and Rental as Objects.
Descending from each object is a dashed line known as the “lifelineâ€. These lines define the time axis of the diagram...
