WP-JRA-2.2

PO-JRA-2.2.1 Overview of the state of the art in composition and coordination of services — by Andreas Metzger — last modified May 19, 2009 10:11

This deliverable presents a survey on the state-of-the-art in service composition. The report is structured into three main sections. First, different models and languages for service composition are described. These involve service orchestration, choreography, wiring, coordination, and semantic WS composition. The next part evaluates approaches to creation and development of service compositions, including model-driven, automated, and QoS-aware service composition. Finally, formal methods to verification of service compositions are presented. Each section starts with an introduction and classification of the approaches and then describes the main contributions in the corresponding area.

CD-JRA-2.2.2 Models and Mechanisms for Coordinated Service Compositions — by Benedikt Liegener — last modified May 19, 2009 10:11

This deliverable describes the research roadmap and initial research work in the context of models and mechanisms for coordinated service compositions. It provides the foundations for the research in the WP JRA-2.2 by establishing a preliminary framework for QoS-aware adaptable service compositions. We present initial research results in some areas of this framework, in particular on models of service compositions, top-down development, and monitoring and adaptation of service compositions. The work will be continued and extended in the follow-up deliverables.

CD-JRA-2.2.3 Algorithms and Techniques for Splitting and Merging Service Compositions — by Osama Sammodi — last modified May 17, 2010 16:08

This deliverable investigates techniques for split and merge of service compositions, with the emphasis on approaches that aim at optimizing costs and performance of service compositions in out- and insourcing scenarios. The deliverable provides classification criteria applicable to any split technique in the state of the art, and some novel techniques that are classified accordingly. Moreover, the deliverable presents exploratory work on merge of service compositions.

CD-JRA-2.2.4 Models, Mechanisms and Protocols for Coordinated Service Compositions — by Dustin Hebgen — last modified Jun 09, 2011 20:56

This deliverable describes models, mechanisms and protocols for coordinated service compositions. We present research results in some areas of this framework, in particular on models of service compositions, monitoring and adaptation of service compositions. The deliverable positions the individual contributions with regard to the reference lifecycle model. The work will be continued and extended in the follow-up deliverables.

CD-JRA-2.2.5 Derivation of QoS And SLA Specifications — by Dustin Hebgen — last modified Jun 09, 2011 20:56

This deliverable describes and presents contributions related to the mechanisms and algorithms for derivation of QoS/SLA specifications for services and service compositions.