What Is an Interaction Diagram? Interaction diagrams are modeled in the Logical View under the appropriate use- case realization. They are created based on the use cases included in the use-case model and the use-case flow of events. Object Oriented Analysis and Design 12Object Oriented Analysis and Design 12 What Is an Interaction Diagram?  Interaction diagrams are modeled in the Logical View under the appropriate use￾case realization.  They are created based on the use cases included in the use-case model and the use-case flow of events