![]() Wang, D.-Z., Trivedi, K.S.: Modeling User-Perceived Service Availability. In: Haverkort, B.R., Bohnenkamp, H.C., Smith, C.U. Zimmermann, A., Freiheit, J., German, R., Hommel, G.: Petri Net Modelling and Performability Evaluation with TimeNET 3.0. IEEE Ninth International Conference on Dependable, Autonomic and Secure Computing (DASC), pp.121-128. Kanso, A., Khendek, F., Toeroe, M.: Automatic Annotation of Software Configuration Models with Service Recovery Information. In: First International ICSE Workshop on Testing Distributed Component-Based Systems, pp. Harrold, M.J., Liang, D., Sinha, S.: An approach to analyzing and testing component-based systems. Reussner, R., Schmidt, H., Poernomo, I.: Reliability prediction for component-based software architectures. Springer, Heidelberg (1987)Ĭhoi, H., Kulkarni, V.G., Trivedi, K.S.: Transient Analysis of Deterministic and Stochastic Petri Nets. PhD thesis, CNAM Paris (1980)Ījmone Marsan, M., Chiola, G.: On Petri Nets with Deterministic and Exponentially Distributed Firing Times. Natkin, S.: Les Reseaux de Petri Stochastiques et leur Application a l’Evaluation des Systemes Informatiques. IEEE conference publications (2010)Īmbuj, G., Stephen, L.: Modeling and analysis of computer system availability. In: 7th International Conference on Service Systems and Service Management (ICSSSM), pp. ![]() Tokuno, K., Yamada, S.: Markovian model for user-perceived software service availability measurement with operation-oriented restoration. In: Proceedings of the IEEE International Conference on Communications (ICC), vol. 3, pp. Xie, W., Sun, H., Cao, Y., Trivedi, K.S.: Modeling of user perceived webserver availability. In: IEEE 13th International Symposium on High-Assurance Systems Engineering (HASE), pp. Kanso, A., Mishra, A., Toeroe, M., Khendek, F.: Integrating Legacy Applications for High Availability – A Case Study. ![]() Service Availability Forum: AIS Availability Management Framework, Object Management Group (OMG), Unified Modeling Language - Superstructure Version 2.1.1 formal/ (2007) Service Availability Forum: Application Interface Specification, In: The 27th Annual Conference of the IEEE Industrial Electronics Society, vol. 3, pp. Walter de Gruyer (1990)Ĭapretz, L., Capretz, M., Li, D.: Component-based software development. Zuse, H.: Software Complexity: Measures and Methods. Yanming, C., Shiyi, X.: Exploration of complexity in software reliability. In this paper we present an approach to approximate from the system configuration the availability of the services provided by a middleware-managed application. Quantifying the availability of an application under a given configuration before deployment is an important issue. Different configurations for the same application may render different levels of service availability. In order to manage the availability of the services provided by the applications, the middleware requires a system configuration that describes the system’s hardware as well as the software application organization and the recovery policies that define the runtime behavior of the middleware. Such middleware is capable of detecting and reacting to the application’s components failures. With the release of the Service Availability Forum specifications, the availability of these applications can be managed by standardized middleware. High availability is a key ingredient in the design of mission critical and revenue generating software applications.
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