DII is a generic dynamic invocation model that always ends in an 'invoke' type of call passing in the operation name and the input parameters for that operation.
DII是一种通用的动态调用模型,所得到的“调用”类型是这样的:传入操作名称,并传入操作的输入参数。
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The implementations are either designed in UML by using method behavior for each operation or Accept Call actions in some other behavior.