Logo des Repositoriums

Auflistung nach Autor:in "Rana, Omer F."

1 - 2 von 2
  • Zeitschriftenartikel
    A Decentralized Grid Market Infrastructure for Service Oriented Grids
    (Wirtschaftsinformatik: Vol. 50, No. 1, 2008) Chao, Isaac; Brunner, René; Freitag, Felix; Navarro, Leandro; Chacín, Pablo; Ardaiz, Oscar; Joita, Liviu; Rana, Omer F.
    Service Oriented Computing has a deep impact on how IT infrastructures are conceived both in academia (e-science) and in industry (Service Oriented Architecture and commercial Web Services). Increasingly, economic models are being considered as suitable coordination mechanism for the management of service allocations to clients. However, few complete infrastructures have demonstrated the enabling of economics-based Service Oriented Grids (SOGs). The authors propose a complete infrastructure for economics-based SOGs and demonstrate its application in a prototype. They conduct experiments showing that practical agent-based automatic and fair trading of services at stable prices can be achieved using the proposed infrastructure.ZusammenfassungDie Technologie agentenbasierter elektronischer Märkte stellt einen Vorschlag für einen passenden Koordinationsmechanismus für Grid- und SOA-Umgebungen dar. Dieser Artikel beschreibt eine vollständige Infrastruktur für marktbasierte serviceorientierte Grids und demonstriert deren Anwendung anhand eines Data-Mining-Prototyps. Die dargestellten Entwicklungen und Experimente zeigen drei Ergebnisse. Erstens integriert die vorgeschlagene Infrastruktur verschiedene Middleware-Werkzeuge und ermöglicht damit die technische Implementierung des Handelns von Grid-Services. Zweitens kann agentenbasiert automatisches und faires Handeln von Services erreicht werden. Schließlich kann gezeigt werden, dass der Einsatz eines ökonomischen Marktmechanismus keine Einschränkung der Systemgröße oder der technischen Anforderung nach sich zieht, sodass prinzipiell eine hohe Skalierbarkeit möglich ist. Stichworte: Ressourcenallokation, Kontraktnetze, dezentrale ökonomische Modelle, serviceorientiertes Grid-Computing
  • Konferenzbeitrag
    Portal Technologies for Patient-centred Integrated Care
    (European Conference on eHealth 2007, 2007) Shaikh Ali, Ali; Rana, Omer F.; Hardisty, Alex; Subramanian, Mahesh; Luzio, Stephen; Owens, David R.; Conley, Edward C.
    Integrated care pathways (ICP) are increasingly used in clinical settings to provide more effective care to patients. ICPs form part of local working agreements to assist co-ordination of multi-disciplinary teams to deliver evidence-based care plans to individual patients. They also document the expected progress of specific patient groups as part of clinical records. To anticipate increased use of ICPs, we have developed Healthcare@Home, a research-phase demonstrator for improving integration of information along the patient path. Healthcare@Home includes support for at-home, in-clinic and mobile wireless sensor devices feeding patient-proximal data hubs, timeline-based physiological trend analysis, data aggregation/dashboarding and individualised risk stratification. These and other decision support tools are embedded in portal designs supporting ‘end-to-end’ workflows as focused by the composite needs of a National Service Framework (NSF) for patients with diabetes. Health-care@Home thus represents a scaleable, extensible personalised healthcare information system driven directly from national policy on disease early detection and prevention. Individual portlets have been mapped to stages in the ICP. The portal technologies employed, running on PCs, mobile phones or TVs are capable of highly cost-effective ‘end-to-end, anywhere-to-anywhere’ information integration.