In the context of interactive digital TV applications (iDTV), mental
models can be especially useful to represent the cognitive structure of users
during learning these applications. These models help to highlight which
elements (e.g. behavioral and spatial) are perceived by users, thus contributing
to a proper understanding and use of learning objects, created for iDTV
environment through metacommunication between developers and users. The
results of this study show that the use of metaphors as storyboard and natural
language are recurrent among users and that the elements of an interactive
narrative for iDTV are not yet fully understood by beginners users.