交互概要圖(Interaction Overview Diagram),是統一塑模語言(UML)的一種圖示,係在活動圖的基礎上,使用「交互框」作為元素,替代活動圖中的「活動」。交互框間以「控制流」連接。交互概述圖常用來描述用例的正常流與替代流之間的關係,作為內部協作圖。
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