BT Technology Journal
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Quality VoIP — An Engineering Challenge
BT Technology Journal - Tập 19 - Trang 23-32 - 2001
Initial impressions of VoIP quality have not always been favourable. This paper discusses the issues behind delivering an 'appropriate' quality of service, specifically voice quality, by showing how design choices ultimately affect, and potentially limit, a customer's perception of VoIP quality. The paper continues by introducing new signal processing techniques that are helping to measure and opt......
Service assurance across organisational boundaries with semantic mediation
BT Technology Journal - Tập 24 - Trang 153-160 - 2006
This paper describes an approach to support OSS integration across organisational boundaries. The requirement for such B2B interfaces is expected to increase as is the need to carry out integration in a much more flexible way. Existing approaches for integration tend to be implementation specific, operate at the syntactic level, and are realised by program code. Consequently they are inflexible du......
Model environments for integration and support
BT Technology Journal - Tập 15 - Trang 100-115 - 1997
Reference models accurately reflect live networks — increasingly this means they are more complex, have shorter development cycles, and are expected to deliver more value-for-money than ever before. Fortunately, it is precisely these real-world issues that reference models are designed to address. This paper examines the evolving role of reference models, and demonstrates that they are an increasi......
Creating Bespoke Applications on Demand from the Agentcities Test-Bed
BT Technology Journal - Tập 21 - Trang 153-161 - 2003
The Agentcities initiative has developed a worldwide test-bed for a new generation of active, agile and automated eBusiness systems. In this paper we introduce the Agentcities initiative and describe how bespoke applications can be provided to users on demand using the infrastructure. An example of a bespoke service that gives novel functionality by composing services in a travel and entertainment......
Radical Innovation
BT Technology Journal - - 2001
Over the next two to four years the UK Government will be under increasing pressure to deliver on the promises made to improve public services and modernise the way in which these services are designed, built and delivered. The UK is not alone in having to improve and modernise mdash the challenges being faced, especially in health, education, crime and transport are global issues and they are iss......
Internet futures
BT Technology Journal - Tập 15 - Trang 226-240 - 1997
This paper describes the architectural principles and drivers behind the Internet protocol suite and identifies the fundamental differences when compared to the historical telco approach. The major Internet protocol enhancements of multicast routeing and quality of service (QoS) are then described and briefly compared to the related and developing solutions in the ITU and ATM forum. Finally, two m......
Risk assessment methodology for network integrity
BT Technology Journal - Tập 15 - Trang 223-234 - 1997
Modern, high functionality networks support an ever-increasing range of sophisticated services; but this strength is also a weakness due to the fragility of the complex distributed-processing capability. Unexpected perturbations can cause widespread network outages, i.e. ‘brownout‘. The risks to network integrity are exacerbated by regulatory policies that demand open network interconnection betwe......
Technology Timeline — Towards Life in 2020
BT Technology Journal - Tập 18 - Trang 19-31 - 2000
No-one knows precisely what life will be like in 2020, but it is always fun guessing. If we know the development rates of many different technologies, we can anticipate many of the things that will be possible and when they are likely to happen. Considering the interactions between the many technologies and society along the way, we can also foresee many potential consequences on business and soci......
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