Decentralised QoS-Management in Service Oriented Architectures

Schmid, Markus; Kroeger, Reinhold

doi:10.1007/978-3-540-68642-2_4

Cited by 13 publications

(5 citation statements)

References 14 publications

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“…The approach presented here is further developed to support a selfmanagement approach that uses the accumulated performance data (shown in Figure 1), see [18] for details.…”

Section: Discussionmentioning

confidence: 99%

SOA monitoring based on a formal workflow model with constraints

Textor¹,

Schmid²,

Schaefer³

et al. 2009

Proceedings of the 1st International Workshop on Quality of Service-Oriented Software Systems

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Today, enterprise critical applications exhibit high complexity, and their non-functional properties like performance and availability are of major importance. From a user perspective, it is desirable to specify both functional and non-functional constraints on the business process model of an application system. The approach presented in this paper shows how business-level application monitoring can be performed based on implementation-level monitoring records. To achieve this, a mapping between application workflow models and an existing instrumentation is defined. This way, monitoring records, which are generated at application runtime, can be related to the workflow model. Our system uses this mapping and a stream of monitoring records to evaluate previously modelled performance constraints and to trigger reactions on constraint violations.

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“…The approach presented here is further developed to support a selfmanagement approach that uses the accumulated performance data (shown in Figure 1), see [18] for details.…”

Section: Discussionmentioning

confidence: 99%

SOA monitoring based on a formal workflow model with constraints

Textor¹,

Schmid²,

Schaefer³

et al. 2009

Proceedings of the 1st International Workshop on Quality of Service-Oriented Software Systems

Self Cite

View full text Add to dashboard Cite

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“…The SCA business components are wrapped inside an SCA composite to include the monitoring and management components and which provides the required interfaces. This equivalency is depicted in Figure 7, focusing on the Monitoring component only for better readability (and is similar to the approach of [16], which does not, however, targets runtime reconfiguration of the management layer). …”

Section: Generalizationmentioning

confidence: 94%

Component-based generic approach for reconfigurable management of component-based SOA applications

Ruz

Baude

Sauvan

2010

Proceedings of the 3rd International Workshop on Monitoring, Adaptation and Beyond

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Service Oriented Architecture (SOA) applications can be composed by sets of loosely coupled interacting heterogenous services from different providers. The Service Component Architecture (SCA) specification allows to build hierarchical applications, applying the principles of SOA and Component Based Software Engineering (CBSE). However, concerns like dynamic management, including reconfiguration and distribution handling for composite services are left as platform specific matters.In this context, monitoring and management tasks are not trivial, since compositions and required QoS levels can change depending on the effective location that services and components are deployed onto. Service Level Agreements (SLA) can also evolve during the lifecycle of the deployed application. Several solutions for monitoring and adaptation of QoS-aware service compositions have been proposed so far, but they have rarely been designed in an integrated way and with evolution capabilities in mind.In this work we advocate that a component based approach is an adequate one in order to implement a reconfigurable framework to handle tasks of monitoring and management of hierarchical component-based SOA applications. Our approach allows to address concerns like monitoring, SLA management and adaptation strategies, possibly autonomous ones, as a component-based distributed application. The main advantage is the capability to reconfigure this management architecture at runtime whenever needed, allowing to dynamically adapt it to the possibly evolving non functional requirements of the managed application.The framework is illustrated through a scenario of a composite SOA application that is dynamically augmented with components to tackle non-functional concerns as it is needed. We describe an implementation over an SCA compliant platform that allows distribution and architectural reconfiguration of components.

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“…The analysis of the identified QoS factors with a valued score is presented in figure 2 showing factors on a scale of 0 (low) to 9 (high) representing their importance (I). The selected scores are for generic SOA applications and they are based on the wider research in the literature, real life experience and the views of the stakeholders [11] [18]. Thus, specific SOA applications with different user requirements might lead to different scores.…”

Section: Analytical Hierarchical Processmentioning

confidence: 99%

Provision of QoS for Grid Enabled Service Oriented Architectures

Oppong

Khaddaj

2010

2010 Ninth International Symposium on Distributed Computing and Applications to Business, Engineering and Science

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The advancement of large scale computing (LSC) has been driven not only by the continuous improvement in hardware infrastructures but also by the development of software paradigms including the introduction of Service Oriented Architecture (SOA). Grid computing is one area of LSC that has seen a focus in the attempt to infuse SOA technology to implement grid services. The decomposition of applications into services is the de-facto in implementing SOA with technologies like Web Services, enabling the implementation at the application layer in a distributed system. Thus, enabling interoperability and maintaining application independence from the network infrastructure. However, this requires a more practical definition of compatibility models that interact at the application layer with grid services. To optimise the integration of SOA on the grid, it is important to indentify the quality factors associated with the application layer services which can be merged into a framework with application layer specific QoS factors to discover and schedule jobs and services.

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Decentralised QoS-Management in Service Oriented Architectures

Cited by 13 publications

References 14 publications

SOA monitoring based on a formal workflow model with constraints

SOA monitoring based on a formal workflow model with constraints

Component-based generic approach for reconfigurable management of component-based SOA applications

Provision of QoS for Grid Enabled Service Oriented Architectures

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