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| 개체 수명선 (In a sequence diagram, a representation of the existence of an object at a particular time. If the object is created or destroyed during the time period the diagram represents, then the lifeline stops or starts at the appropriate point) | |||
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| 개체 수명선 (In a sequence diagram, a representation of the existence of an object at a particular time. If the object is created or destroyed during the time period the diagram represents, then the lifeline stops or starts at the appropriate point) | |||