Kenneth J. Turner

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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(More)
It is argued that various factors including the increasingly ageing population will require more care services to be delivered to users in their own homes. Desirable characteristics of such services are outlined. The Open Services Gateway initiative has been adopted as a widely accepted framework that is particularly suitable for developing home care(More)
Home care is increasingly seen as a promising alternative to traditional care services. Programming home care systems remains a significant challenge considering the potentially large scale of deployment, the differences between individual care needs, and the progressive nature of ageing. In this paper, we present ongoing work on programming home care(More)
Composite web services are defined using the industry-standard language BPEL (Business Process Execution Logic). There is a strong need for graph-ical and automated support for this task. It is explained how CRESS (Chisel Representation Employing Systematic Specification) has been extended to meet this challenge. CRESS supports straightforward graphical(More)
Home care networks are a new development for automated support of care at home. To address the challenges of home care, the paper describes a component-based architecture developed by the MATCH project (Mobilising Advanced Technologies for Care at Home). Two key components are discussed for managing home care networks. A Service Registry supports generic(More)
The need for policies to control calls is justified by the changing face of communications. It is argued that call control requires distinctive capabilities in a policy system. A spe-cialised policy language called APPEL (ACCENT Project Policy Environment/Language) has therefore been developed for this purpose. However the policy language is cleanly(More)
Feature interaction is a problem mostly considered in the context of telephony features , but present in other domains. In this paper we consider policies (independent of the system that they control) as an application domain for feature interaction techniques. We present the feature interaction problem as it occurs in the policy context and show how it can(More)