NDLI: A Framework for Verifying SLA Compliance in Composed Services

Content Provider	IEEE Xplore Digital Library
Author	Hua Xiao Chan, B. Ying Zou Benayon, J.W. O'Farrell, B. Litani, E. Hawkins, J.
Copyright Year	2008
Description	Author affiliation: Sch. of Comput., Queen's Univ., Kingston, ON (Hua Xiao) \|\| Toronto Lab., IBM, Markham, ON (Benayon, J.W.; O'Farrell, B.; Litani, E.; Hawkins, J.) \|\| Dept. of Electr. & Comput. Eng., Queen's Univ., Kingston, ON (Chan, B.; Ying Zou)
Abstract	Service level agreements (SLAs) impose many non-functional requirements on services. Business analysts specify and check these requirements in business process models using tools such as IBM WebSphere Business Modeler. System integrators on the other hand use service composition tools such as IBM WebSphere Integration Developer to create service composition models, which specify the integration of services. However, system integrators rarely verify SLA compliance in their proposed composition designs. Instead, SLA compliance is verified after the composed services are deployed in the field. To improve the quality of the composed services, we propose a framework to verify SLA compliance in composed services at design time. The framework re-uses information in business process models to simulate services and verify the non-functional requirements before the service deployment. To demonstrate our framework, we built a prototype using an industrial process simulation engine from IBM WebSphere Business Modeler and integrate it into an industrial service composition tool. Through a case study, we demonstrate that our framework and the prototype assist system integrators in composing services while considering the non-functional requirements.
Starting Page	457
Ending Page	464
File Size	558547
Page Count	8
File Format	PDF
ISBN	9780769533100
DOI	10.1109/ICWS.2008.26
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Web services Costs Analytical models Monitoring Testing Virtual prototyping Engines Prototypes Process design Fault detection web service Service level agreements verification business process simulation
Content Type	Text
Resource Type	Article

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