Coupled vs decoupled user interaction environments in PSEEs

In this paper we discuss the relationship between Process Modeling Language (PML) paradigm and user interaction paradigm in a PSEE. On one side, the user interaction paradigm may strongly depend on the PML and its supporting environment. On the other side, it is related to the social context and the specific process in which it is used. A user interaction environment decoupled from the PML may be tailored to the specific user needs, without impacting on the PML concepts and on the PSEE architecture. On the other hand, a user interaction environment coupled with the PML does not require specific modeling work by the process modeler but binds the interaction paradigm to the process language paradigm. We characterize these two extreme alternatives and provide pros and cons for each of them.