MOSES: a Framework for QoS Driven Runtime Adaptation of Service-oriented Systems
| Citations: | 24 - 3 self |
BibTeX
@MISC{Cardellini_moses:a,
author = {Valeria Cardellini and Emiliano Casalicchio and Vincenzo Grassi and Stefano Iannucci and Francesco Lo Presti and Raffaela Miranda},
title = { MOSES: a Framework for QoS Driven Runtime Adaptation of Service-oriented Systems},
year = {}
}
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Abstract
Architecting software systems according to the service-oriented paradigm, and designing runtime self-adaptable systems are two relevant research areas in today’s software engineering. In this paper we address issues that lie at the intersection of these two important fields. First, we present a characterization of the problem space of self-adaptation for service-oriented systems, thus providing a frame of reference where our and other approaches can be classified. Then, we present MOSES, a methodology and a software tool implementing it to support QoS-driven adaptation of a service-oriented system. It works in a specific region of the identified problem space, corresponding to the scenario where a service-oriented system architected as a composite service needs to sustain a traffic of requests generated by several users. MOSES integrates within a unified framework different adaptation mechanisms. In this way it achieves a greater flexibility in facing various operating environments and the possibly conflicting QoS requirements of several concurrent users. Experimental results obtained with a prototype implementation of MOSES show the effectiveness of the proposed approach.
Keyphrases
service-oriented system qos driven runtime adaptation problem space runtime self-adaptable system qos requirement relevant research area abstract architecting software system software engineering several user specific region qos-driven adaptation prototype implementation composite service need index term service-oriented architecture unified framework different adaptation mechanism runtime adaptation several concurrent user experimental result software tool important field
