523 research outputs found

    A Policy Architecture for Enhancing and Controlling Features

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    Abstract. Features provide extensions to a basic service, but in new systems users require much greater flexibility oriented towards their needs. Traditional features do not easily allow for this.We propose policies as the features of the future. Policies can be defined by the end-user, and allow for the use of rich context information when controlling calls. This paper introduces an architecture for policy definition and call control by policies. We discuss the operation of systems based on such an architecture. An important aspect of the architecture is integral feature interaction handling

    The ACCENT Policy Server

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    The designs expressed in this report are copyright of the University of Stirling. Certain aspects may also be protected by patents held by Mitel Networks Corporation. Publication of this report does not confer the right to use or adapt these designs in whole or in part. The ACCENT project was concerned with developing a practical and comprehensive policy language for call control. The project therefore studied a number of distinct tasks: the definition of the language, and also a threelayer architecture for deploying and enforcing policies defined in the language. This document focuses on the policy system layer of the three-layer architecture. The policy system layer is concerned with storing, deploying and enforcing policies. It represents the core functionality of the three-layer architecture. This report discusses the prototype implementation at a technical level. It is intended as supporting documentation for developers continuing to enhance the prototype, as well as those wishing to gain an insight into the technical details of the policy server layer

    Coulomb Dissociation of 17Ne^{17}Ne

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    Spin assignment of the 7.57 MeV state in the unbound nucleus 16^{16}Ne

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    APPEL: An Adaptable and Programmable Policy Environment and Language

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    The Accent project (Advanced Component Control Enhancing Network Technologies) developed a practical and comprehensive policy system for call control/Internet telephony. The policy system has subsequently been extended for management of sensor networks/wind farms and of home care/telecare. This report focuses on Appel (Adaptable and Programmable Policy Environment and Language). It provides an overview of the language, and presents the language in XML schema form. The core language has been instantiated for call control, for sensor networks, and for home care. Sample goals and policies of different kinds are provided to illustrate these applications

    Use of Logic to describe Enhanced Communications Services

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    New functionality is added to telecommunications systems in the form of features or services. However, this is a very provider-centric approach, not giving much control to the user. We consider a logic that allows the user to express preferences as to how they wish calls to be handled. This logic is encapsulated in a user-friendly policy description language. The transferability of a policy description language (Ponder) developed for system management and access control is discussed

    Thomas-Ehrman shifts

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    Simulation of the R3^{3}B-LAND Response for Proton Channels using R3BROOT

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