This paper describes the proposed Differentiated Services schemes, makes comparison between proposals, and matches them against the proposed Differentiated Services (DS) byte and the DS architecture proposed by the Differentiated Services Working Group (DSWG). In addition an application feedback is introduced as a new DS service. This method enables applications to prioritize packets within an ...

The next step in the evolution of active networks — one that will support radical new uses of the network and increased scalability — is packaging the power of a programmable network platform into customizable active services that are easy for applications to use. The Activecast project has been developing and evaluating a set of active services that will not only enhance the “applicationfriend...

This paper describes a set of graphical object services which provide a cohesive, consistent application development environment for implementing graphical user interfaces in intelligent workstation applications. These objects are implemented as a set of controls using the Presentation ManagerTM windowing system. A control in the Presentation Manager environment is a user interface element with...

This paper describes an implementation of a Grid Application Factory Service that is based on a component architecture that utilizes the emerging Web Services standards. The factory service is used by Grid clients to authenticate and authorize a user to configure and launch an instance of a distributed application. This helps us solve the problem of building reliable, scalable Grid applications...

The spectrum of Internet-based services offered to final users is continuously enlarging, by considering service provisioning to clients connected to either fixed networks or mobile ones. In addition, the organization requirements connected to the increasing capabilities of wireless access devices are deeply modifying the service provisioning process. On the one hand, 3G mobile networks should ...

Many small businesses require distributed information systems but do not have the resources to develop, host or maintain them. An alternative approach may be to offer the software as a distributed service. Students in the University of South Dakota (USD) Systems Analysis course partner with small businesses to design software services using a model-driven system development approach and the stu...

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Companies have to adapt to changing environments and business requirements in short cycles. They seek to address their customers via various channels involving new (net-based) technologies. This poses an interesting question: How can we support multiple channels with various user front ends without at the same time duplicating business functionality? We present an elegant solution in the form o...

This paper is part of a series of ORCHESTRA contributions to ISESS 2007. For better understanding of this article, it is recommended to read the introduction paper (Usländer (2007)) first. The paper outlines the definition, implementation and application of semantic services in the context of a service-oriented architecture as developed by the ORCHESTRA project. While up to date most standardis...

In this paper we present an overlay infrastructure for provisioning content services over the Internet. This provides a uniform framework to develop ubiquitous application services and deploy it on a shared active infrastructure on need basis. This meta-protocol powered framework is intended to support a wide array of emerging application service scenarios, ranging from simple caching and conte...