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dc.contributor.authorPoulovassilis, Alex
dc.contributor.authorXhafa Xhafa, Fatos
dc.contributor.authorO'Hagan, Thomas
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciències de la Computació
dc.date.accessioned2015-12-04T15:14:09Z
dc.date.available2015-12-04T15:14:09Z
dc.date.issued2015-01-01
dc.identifier.citationPoulovassilis, A., Xhafa, F., O'Hagan, T. Event-based awareness services for P2P groupware systems. "Informatica", 01 Gener 2015, vol. 26, núm. 1, p. 135-157.
dc.identifier.issn0868-4952
dc.identifier.urihttp://hdl.handle.net/2117/80203
dc.description.abstractP2P systems enable decentralised applications for supporting collaborating groups and communities, where the collaboration may involve both sharing of data and sharing of group processes among group members. In such applications, monitoring and awareness are critical functionalities required for an effective collaboration. However, to date there has been little research into providing generic, application-independent awareness in P2P groupware systems. We present a distributed event-based awareness approach for such systems that provides different forms of awareness through a set of interoperating, low-level awareness services. The user and technical requirements for the approach are motivated with reference to Project-Based Learning in a P2P environment. We describe the implementation of a superpeer P2P network on a Cloud platform and the provision of reliable awareness services (AaaS - Awareness as a Service) from the Cloud. We report on the outcomes of an empirical evaluation of the performance and scalability of the approach.
dc.format.extent23 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
dc.subjectÀrees temàtiques de la UPC::Informàtica::Arquitectura de computadors
dc.subject.lcshCloud computing
dc.subject.lcshPeer-to-peer architecture (Computer networks)
dc.subject.otherP2P systems
dc.subject.othercollaboration
dc.subject.otherawareness
dc.subject.otherservices
dc.subject.othercloud computing
dc.subject.otherawareness as a service (AaaS)
dc.subject.otherenvirontments
dc.subject.otherarchitecture
dc.titleEvent-based awareness services for P2P groupware systems
dc.typeArticle
dc.subject.lemacComputació en núvol
dc.subject.lemacXarxes punt a punt (Xarxes d'ordinadors)
dc.identifier.doi10.15388/Informatica.2015.42
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.mii.lt/Informatica/htm/INFO1046.htm
dc.rights.accessOpen Access
drac.iddocument15621064
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorPoulovassilis, A., Xhafa, F., O'Hagan, T.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameInformatica
upcommons.citation.volume26
upcommons.citation.number1
upcommons.citation.startingPage135
upcommons.citation.endingPage157


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