Middleware for Managing QoS Adaptation of SOA Applications

• Autorzy: Psiuk J. , Zielinski K.

Identyfikatory

DOI

10.12921/cmst.2015.21.01.001

• Języki publikacji: EN

Abstrakty

EN

The paper describes an improvement over our previous work: the concept of an Adaptive SOA Solution Stack (based on the IBM S3 model) which applies an AS3 element pattern to S3 layers where the need for adaptation arises. The presented improvement, called the adaptation strategy management process, represents a solution that enables an Adaptation Architect to model Quality of Service (QoS) adaptation in a declarative manner, automatically deploy it into a running system and then monitor its execution. Its main objective is to allow the Adaptation Architects to view the adaptation process on a higher level of abstraction and employ adaptivity mechanisms in working applications in an easy way. This is accomplished by incorporating the adaptive application metamodel developed in the DiVA EU project and adjusting it to the SOA context. This paper explains the challenges involved in adaptation strategy management and proposes extensions to the DiVA metamodel. Subsequently, it presents a method by which the Adaptive Manager (a component of the AS3 adaptation loop responsible for making decisions about adaptation) can execute adaptation strategies in accordance with the adaptation model. The presented approach is evaluated in a case study, creating an adaptation strategy and monitoring its impact on an application prototype.

Słowa kluczowe

EN

adaptation management; adaptation strategy; SOA; adaptive manager

• Wydawca: Institute of Bioorganic Chemistry Scientific Publishers OWN, Polish Academy of Sciences
• Czasopismo: Computational Methods in Science and Technology
• Rocznik: 2015
• Tom: Vol. 21, No. 1
• Strony: 11--19
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Psiuk J.

• AGH University of Science and Technology Faculty of Computer Science, Electronics and Telecommunications Department of Computer Science

autor

Zielinski K.

• AGH University of Science and Technology Faculty of Computer Science, Electronics and Telecommunications Department of Computer Science

Bibliografia

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