Modelling Complex User Experiences in Distributed Interaction Environments

The focus of this work is that of the so-called mixed reality domain, where interaction is increasingly becoming a complex matter in which the user navigates the different locations of a 3D virtual or real world, manipulates objects and accesses content with different degrees of heterogeneity and synchronization. In order to control such complexity we specify the 3D environment by a multilevel control finite state machine using the state-charts notation and we model the interaction with the environment and the multimedia content communicated to the user through the concepts of experience process and experience pattern. A set of distributed software agents log and process data related to the user experience for controlling interaction and data presentation at run-time.