Building Event-Based Services for Awareness in P2P Groupware Systems

Abstract

Monitoring and awareness are essential in collaborative work environments, in order to support team members' interaction and coordination processes. There has been much work in implementing awareness in web-based applications, but less so for P2P collaborative systems. P2P systems have the potential to foster more group interaction than server-based approaches, as group members can interact directly with each other and can share their knowledge, skills and resources in order to provide mutual support in the accomplishment of group tasks. Several challenges arise due to the large-scale, dynamic and heterogenous nature of P2P collaborative systems. In this paper we discuss the provision of event-based awareness services in P2P groupware systems. We first review the major requirements for such awareness functionality, and propose a structured P2P network model for meeting these requirements. We then identify a set of low level awareness services and show how these can interoperate over the P2P network in order to provide awareness as part of the P2P middleware infrastructure. Finally, we envision the use of service composition to provide more complex awareness services and we discuss the implementation of a superpeer network on a Cloud platform and the provision of reliable awareness services from the Cloud.

An adaptive event-based system for anytime, anywhere, awareness services in online teamworks

“…This opens up many possibilities to design and implement very efficient notification systems for mobile learners. One interesting aspect that we would like to further develop is define taxonomy of events that would fully support the A3 paradigm of anywhere, anytime, awareness in groupware systems, following work in [10,11,12].…”

Event-Based Awareness Services for P2P Groupware Systems

“…We give our concluding remarks and directions of future work in Section 8. This paper extends (Poulovassilis and Xhafa, 2013) to give more detailed analysis of the user requirements for building P2P networks to support collaborative group work, and how a set of low-level awareness services interoperate to meet these requirements. We also describe here an implementation of our approach and the results of an empirical evaluation of its performance and scalability.…”