August 2018
Beginner
594 pages
22h 33m
English
Content preview from Software Architect's Handbook
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Activation boxes
Activation boxes on the lifelines show when an object is completing a task. For example, when a message is sent to an object, the time period from when the message is received until the response is returned can be represented with an activation box. Since activation boxes are on the lifelines, they also represent time. The longer the activation box, the longer the task will take to complete.