The Four Major Challenges of Engineering Adaptive Software Architectures

Han, Jun; Colman, Alan

doi:10.1109/compsac.2007.212

Cited by 3 publications

(2 citation statements)

References 13 publications

(11 reference statements)

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“…Such an abstraction and modularization helps to mitigate the complexity [7] resulting from runtime modifications. Such complexity is one of the obstacles to achieving adaptive software design [8].…”

Section: Extending Axis2 Capabilitiesmentioning

confidence: 99%

ROAD4WS -- Extending Apache Axis2 for Adaptive Service Compositions

Kapuruge

Colman

King

2011

2011 IEEE 15th International Enterprise Distributed Object Computing Conference

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Abstract-Service oriented architecture plays a prominent role in creating and utilizing business services in enterprise computing environments. The service composers produce value by aggregating lower-level re-usable services, scattered across the internet to create application level services. Web service middleware facilitates in defining service compositions in a comprehensive manner. However, in order to ensure the business viability amidst unpredictably changing business requirements, such compositions may need to adapt during the runtime. Such changes might vary from a minor regulation to a major re-structuring of the IT service composition. However, the complexity of the composition shouldn't increase and the runtime interruptions to the service delivery need to be kept to a minimum. In this paper we introduce ROAD4WS, which is a middleware extension to the popular Apache Axis2 web service engine. The extension brings together the modular adaptive architecture of the Role Oriented Adaptive Design (ROAD) with the web services deployment and consumption capabilities of the Apache Axis2 engine, in order to facilitate deploying adaptive service compositions.

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Section: Extending Axis2 Capabilitiesmentioning

confidence: 99%

ROAD4WS -- Extending Apache Axis2 for Adaptive Service Compositions

Kapuruge

Colman

King

2011

2011 IEEE 15th International Enterprise Distributed Object Computing Conference

Self Cite

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“…The following definitions represent the core elements for DA which we identified after a thorough review of current work on adaptation [2], [3], [4], [5], especially on DA. The aim of this group of definitions is to help us assess the potential of selected (formal) service-oriented modelling languages.…”

Section: Requirements On Languages For Damentioning

confidence: 99%

An Analysis of Formal Languages for Dynamic Adaptation

Fox

Clarke

2010

2010 15th IEEE International Conference on Engineering of Complex Computer Systems

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Abstract-The service-oriented computing paradigm is in widespread use for adaptive systems that face changing conditions in their operational environment as well as the integration of new services. In many domains, adaptations may occur dynamically and in real-time, using services from heterogeneous, possibly unknown sources. This motivates a need to ensure the correct behaviour of the adapted system, and its continuing compliance to time bounds. The complexity of dynamic adaptation (DA) is significant, but unfortunately currently not well understood or formally specified. Formal methods are an attractive option for solving this problem as they provide a means to precisely model a software system. There are many formal languages targeted to different domains, and in this paper, we present the results of our analysis of three languages as potential candidates for modelling our time-constrained DA problem. In particular, we selected JOLIE, PiDuce and COWS for analysis, as they are targeted towards service-based systems and each provide means to model at least some of our requirements. Our results illustrate the strengths and limitations of each, and justify our selection of COWS as the best-fit, though limited, language for our purposes.

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2014

Service Orchestration as Organization

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The Four Major Challenges of Engineering Adaptive Software Architectures

Abstract: Abstract

Cited by 3 publications

References 13 publications

ROAD4WS -- Extending Apache Axis2 for Adaptive Service Compositions

ROAD4WS -- Extending Apache Axis2 for Adaptive Service Compositions

An Analysis of Formal Languages for Dynamic Adaptation

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