Many design models and representations have been proposed to support user-centered system design, such as scenarios, use cases, and prototypes. With these artifacts, designers typically deal with representations of fragments of the application, and sometimes have difficulties communicating with one another about design decisions. To face some of the communication challenges during design, we believe that we could use a global view of the system’s apparent behavior, from the users’ point of view. Such a representation would serve as a common reference for HCI designers from different disciplinary backgrounds, helping to foster communication among them. In our goal to promote a shared understanding of the application, we have investigated different professionals’ usage of MoLIC, an interaction modeling language that follows an interaction-as-conversation metaphor. MoLIC allows designers to build a blueprint of all the interactions that may take place when the application is used.