Service Availability: Second International Service Availability Symposium, ISAS 2005, Berlin, Germany, April 25-26, 2005, Revised Selected Papers (Lecture Notes in Computer Science, 3694)

much! Last but not least we would like to thank Manfred Reitenspieß who has been the guiding force behind ISAS and the Service Availability Forum. I hope that the attendees enjoyed the ?nal program, enjoyed the presen- tions, got involved in the discussions, struck up new friendships, and got ins- ration for contributions to the next year's symposium which will be hosted by KimmoRaatikainen, UniversityofHelsinkiandFrancisTamofNokiainHelsinki during May 15-16, 2006. Miroslaw Malek Neeraj Suri Humboldt Universit] at Berlin Technische Universit] at Darmstadt Institut fur ] Informatik Institut fu]rInformatik malek@informatik. hu-berlin. de suri@informatik. tu-darmstadt. de ISAS 2005 General Chair ISAS 2005 Program Chair Table of Contents TTA Supported Service Availability Hermann Kopetz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 The Value of Conformance Testing and a Look at the SAF Test Project Bob Spencer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Building Highly Available Application Using SA Forum Cluster: A Case Study of GGSN Application Ajay Kamalvanshi, Timo Jokiaho. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Using Logical Data Protection and Recovery to Improve Data Availability Wei Hu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Contract-Based Web Service Composition Framework with Correctness Guarantees Nikola Milanovic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Practical Approach to Speci?cation and Conformance Testing of Distributed Network Applications Victor V. Kuliamin, Nickolay V. Pakoulin, Alexander K. Petrenko . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Model-Based Optimization of Enterprise Application and Service Deployment Andr´ as Balogh, Dan ´ iel Varro, ´ Andr´ as Pataricza . . . . . . . . . . . . . . . . . . . 84 On Best-E?ort and Dependability, Service-Orientation and Panacea Aad van Moorsel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Are Service-Oriented Architectures the Panacea for a High-Availability Challenge? Guido Laures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Modeling User-Perceived Service Availability Dazhi Wang, Kishor S. Trivedi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .