Unraveiling Crosscutting Concerns in Web Services Middleware

Verheecke, Bart; Vanderperren, Wim; Jonckers, Viviane

doi:10.1109/ms.2006.31

Cited by 37 publications

(27 citation statements)

References 6 publications

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“…However, applying AOP to Web services composition is still in its early stage. Some first efforts are reported in [39], [40], [41], [42]. In particular, [40] is a recent effort to enhance BPEL orchestration engine with AOP technique to enable adaptive service provisioning.…”

Section: Techniques Dealing With Service Adaptabilitymentioning

confidence: 99%

Configurable Composition and Adaptive Provisioning of Web Services

Sheng

Benatallah

Maamar

et al. 2009

IEEE Trans. Serv. Comput.

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Abstract-Web services composition has been an active research area over the last few years. However, the technology is still not mature yet and several research issues need to be addressed. In this paper, we describe the design of CCAP, a system that provides tools for adaptive service composition and provisioning. We introduce a composition model where service context and exceptions are configurable to accommodate needs of different users. This allows for reusability of a service in different contexts and achieves a level of adaptiveness and contextualization without recoding and recompiling of the overall composed services. The execution semantics of the adaptive composite service is provided by an event-driven model. This execution model is based on Linda Tuple Spaces and supports real-time and asynchronous communication between services. Three core services, coordination service, context service, and event service, are implemented to automatically schedule and execute the component services, and adapt to user configured exceptions and contexts at run time. The proposed system provides an efficient and flexible support for specifying, deploying, and accessing adaptive composite services. We demonstrate the benefits of our system by conducting usability and performance studies.

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Section: Techniques Dealing With Service Adaptabilitymentioning

confidence: 99%

Configurable Composition and Adaptive Provisioning of Web Services

Sheng

Benatallah

Maamar

et al. 2009

IEEE Trans. Serv. Comput.

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“…The architectural view already presented in the current section focuses on the desired primary functionality. Nevertheless, it appears that some concerns can not be easily localized and specified in individual architectural components, as researched by [22]. Similar to practice in aspect-oriented software development, we call such concerns crosscutting concerns [23,4].…”

Section: Solution Directionsmentioning

confidence: 99%

Service-Oriented Coordination Platform for Technology-Enhanced Learning

Shishkov¹,

Sinderen²

2009

Proceedings of the 3rd International Workshop on Enterprise Systems and Technology

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Abstract. It is currently difficult to coordinate learning processes, not only because multiple stakeholders are involved (such as students, teachers, administrative staff, technical staff), but also because these processes are driven by sophisticated rules (such as rules on how to provide learning material, rules on how to assess students' progress, rules on how to share educational responsibilities). This is one of the reasons for the slow progress in technologyenhanced learning. Consequently, there is a clear demand for technological facilitation of the coordination of learning processes. In this work, we suggest some solution directions that are based on SOA (Service-Oriented Architecture). In particular, we propose a coordination service pattern consistent with SOA and based on requirements that follow from an analysis of both learning processes and potentially useful support technologies. We present the service pattern considering both functional and non-functional issues, and we address policy enforcement as well. Finally, we complement our proposed architecture-level solution directions with an example. The example illustrates our ideas and is also used to identify: (i) a short list of educational IT services; (ii) related non-functional concerns; they will be considered in future work.

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“…Arsanjani et al [4] and others [10,13,32] have shown that AOSD has a lot of potential in a web services context too.…”

Section: Aspects and Padusmentioning

confidence: 99%

Guiding Service Composition in a Visual Service Creation Environment

Braem

Joncheere

Vanderperren

et al. 2006

2006 European Conference on Web Services (ECOWS'06)

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Current day service composition languages like WS-BPEL require in-depth knowledge of this language by the service composition designers. In this paper we present a high-level, visual Service Creation Environment (SCE). This SCE provides service composition templates, verification of compatibility and guidelines, and advanced separation of concerns through Aspect-Oriented Software Development. Composition templates are abstract descriptions of reusable compositions containing several placeholders for services. Services are verified to be compatible with the composition template when a service is mapped onto a composition template's placeholder. Composition guidelines such as QoS constraints can be added to the SCE and verified. The modularization of crosscutting concerns is supported by the SCE through the general-purpose Padus Aspect-Oriented Programming language and the possibility to add concern-specific languages on top of Padus. The SCE generates the appropriate WS-BPEL processes given a complete and verified service composition.

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Unraveiling Crosscutting Concerns in Web Services Middleware

Cited by 37 publications

References 6 publications

Configurable Composition and Adaptive Provisioning of Web Services

Configurable Composition and Adaptive Provisioning of Web Services

Service-Oriented Coordination Platform for Technology-Enhanced Learning

Guiding Service Composition in a Visual Service Creation Environment

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