By Kinji Mori (auth.), Miroslaw Malek, Manfred Reitenspieß, Aad van Moorsel (eds.)
Program Chairs’ Message th The four overseas provider Availability Symposium (ISAS 2007) endured with the culture of its predecessors by way of bringing jointly researchers and practitioners from either academia and to handle the issues of provider availability. the original attribute of a robust educational and commercial partnership was once vividly - flected during this year’s occasion, from the Organizing Committee to the contributions and the members. spotting the price of broadening the scope of ISAS 2007, we integrated new subject components that hide model-driven layout and human elements. We acquired a complete of 25 submissions, every one of which was once completely reviewed by means of no less than 3 individuals of this system Committee. a result of constrained time allotted for the symposium, many precious manuscripts regrettably didn't make it into the ultimate software. Our honest thank you visit this system Committee for carrying out a full of life assessment method in a slightly tight time agenda. The precise stories and their beneficiant reviews have formed the contributions into a good program.
Read or Download Service Availability: 4th International Service Availability Symposium, ISAS 2007, Durham, NH, USA, May 21-22, 2007. Proceedings PDF
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Additional resources for Service Availability: 4th International Service Availability Symposium, ISAS 2007, Durham, NH, USA, May 21-22, 2007. Proceedings
Malek investigating distinguishing properties of service-oriented systems and examining the possible levels of abstraction and integration between the SOC, OS concepts and dependability. We focus on the following dependability attributes, as defined in : service availability (readiness for correct service), service reliability (continuity of correct service), integrity (absence of improper system alterations) and maintainability (ability to undergo modifications and repair). 1 Properties of Service-Oriented Systems The main difference between traditional client-server applications and serviceoriented applications is that instead of monolithic server application and fat client, thin clients are communicating with relatively coarse-grained server applications built dynamically out of fine-grained services, possibly hosted by different providers and/or organizations.
Several modules in the memory database component greatly contribute to increasing availability through their cooperation with SAF AMF (Availability Management Framework) Area Server. Implementation of Highly Available Memory Database as SAF Component 45 Furthermore, a replication-based redundant database can be easily realized by using the MSG (Message Service) Area Server, which is superior to the shared-disk architecture in terms of availability; the shared-disk architecture needs disk syncing when switching over to ensure data consistency between nodes.
Micskei, I. Majzik, and F. 2 Mutation-Based Sequential Test Generator While the TBTS-TG tool tests mostly individual functions, the mutation-based sequential test generator (MBST-TG) could be used to generate complex call sequences. The basic idea of the tool is that mutation operators representing typical robustness faults, like omitting a call or changing the specified order of calls, are applied to valid functional test programs that use the HA middleware. In this way a large number of complex robustness test cases can be obtained automatically.