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This paper introduces admission control models for accepting or denying requests to differentiated media streaming services to avoid overload and to use multiple scarce server resources efficiently. The decision models are based on deterministic and stochastic mathematical programming techniques and use a number of heuristics to determine model parameters at run-time. In contrast to existing admission...
Identifying proper business processes, formalizing and documenting them has always been a challenge. Maintaining them in synchronization with changing business needs makes the problem harder. It becomes even harder when business processes are fully or partially implemented in IT systems where changes to the business cause changes in IT configurations. This paper presents an approach how IT configurations...
The exchange of inter-enterprise and intra-enterprise logistics services in the transport logistics sector has become more important. Nevertheless, only a few approaches are able to take into consideration the synergy effects between the customer orders in the case of the outsourcing process and the preferences of customers. In this article, an approach is introduced which offers a solution based...
WSDL Web services are built around the request-reply framework, requiring service invocation to be bundled together with all relevant data in a single message. Inefficiency becomes evident as Web service providers begin to offer more robust services that require massive datasets (e.g., multimedia and scientific data). Under the WSDL standards, these hefty datasets must be ported to an appropriate...
It is the responsibility of an e-commerce provider to provision resources to ensure that the performance of the services provided by an e-commerce application is acceptable. A quantitative estimate of the performance expected from the site, obtained from the expected workload imposed on the application, may allow the provider to make informed decisions with respect to the right level of resources...
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