The following approach will be used in designing, implementing and
evaluating the bus:
(a) Identify the services that a collaborative application requires. (b) Identify a reference model for each of these services. (c) Identify semantics translations and composition functions for each of these services. (d) Incorporate, into the bus, a default implementation of the service and the associated semantic translations and composition functions. (e) Develop mechanisms and policies for replicating and migrating parts of the bus. (f) Develop mechanisms for protecting the operations on the bus. (g) Carry out interoperability experiments involving each of these services using state-of-the-art existing software.
The research group will incorporate and experiment with the collaboration services in several stages. In the first stage, it will investigate application-independent services and conduct (inter-service and intra-service) interoperability experiments that involve these services. Next, it will incorporate a data and user interface model for supporting application-dependent services. It will then research application-dependent collaboration-enabling services, and finally, it will investigate application-dependent collaboration-control services. It will investigate these services in a bottom-up, breadth-first manner, including as much support as is needed to perform the current interoperability experiment, and gradually increasing the scope of the interoperability experiments.
Previous research efforts have addressed generic data models (e.g. CORBA)
and multimodal user interfaces (e.g. MASTERMIND). This project will
extend this research in three main ways. First, it will evaluate the
suitability of existing, general purpose concepts for capturing the data
and user-interfaces in the target collaborative applications and make any
necessary adaptations. Second, it will add to the general-purpose models
common objects found in the collaboration/multimedia domain.
Finally, it will define interfaces between the data and user-interface
models and other components of the collaboration model.