Model-Driven Evaluation of User-Perceived Service Availability
Additional information
Authors
Dittrich A.,
Ribeiro Rezende R.,
Vieira M. a. C.
Type
Book chapter
Year
2013
Language
English
Abstract
Service-oriented architecture (SOA), which proposes services as basic building elements of system design, has emerged as an approach to master growing system complexity. However, it remains difficult to evaluate dependability of such distributed and heterogeneous functionality as it depends highly on the properties of the enabling information and communications technology (ICT) infrastructure. Moreover, every specific pair service client and provider can utilize different ICT components, constituting for the user-perceived view of a service. We provide a model-driven methodology to automatically create reliability block diagrams of such views. Given a service description, a network topology model and a pair service client and provider, it identifies relevant ICT components and generates a user-perceived service availability model (UPSAM). We then use this UPSAM to calculate the steady-state availability of different views on an examplary mail service deployed in the network infrastructure of University of Lugano.
Keywords
availability, design engineering, modeling, object oriented modeling, quality of service (QoS), service dependability, service network management, service networks
Book
Dependable Computing
Volume
7869
Publisher
Springer Berlin Heidelberg
Series
Lecture Notes in Computer Science
Pages (or article number)
39-53
ISSN
978-3-642-38788-3
