Important Lessons Derived from X.500 Case Studies

X.500 is a new and complex electronic directory technology, whose basic specification was first published as an international standard in 1988, with an enhanced revision in 1993. The technology is still unproven in many organisations. This paper presents case studies of 15 pioneering pilot and operational X.500 based directory services. The paper provides valuable insights into how organisations are coming to understand this new technology, are using X.500 for both traditional and novel directory based services, and consequently are deriving benefits from it. Important lessons that have been learnt by these X.500 pioneers are presented here, so that future organisations can benefit from their experiences. Factors critical to the success of implementing X.500 in an organisation are derived from the studies

The Hypertext Internet Connection: E-mail, Online Search, Gopher

In this paper we show how to handle and organize the large amount of information accessible through the Internet or other public communication networks in a hypertext environment. The C(K)onstance-Hypertext-System (KHS) uses typed units to indicate the differences and the content and structure of information, comprising text, forms, images pointers to external information. We show how to imbed Internet services, which usual require rather different interaction styles, such as point-to-point communication (e-mail query formulation (online databases) or browsing (Gopher) into the uniform interaction model of the KHS. The integration of Internet services in an open hypertext environment produces value-adding effects which are also discussed. (DIPF/Orig.

A peer-to-peer infrastructure for resilient web services

This work is funded by GR/M78403 “Supporting Internet Computation in Arbitrary Geographical Locations” and GR/R51872 “Reflective Application Framework for Distributed Architectures”, and by Nuffield Grant URB/01597/G “Peer-to-Peer Infrastructure for Autonomic Storage Architectures”This paper describes an infrastructure for the deployment and use of Web Services that are resilient to the failure of the nodes that host those services. The infrastructure presents a single interface that provides mechanisms for users to publish services and to find hosted services. The infrastructure supports the autonomic deployment of services and the brokerage of hosts on which services may be deployed. Once deployed, services are autonomically managed in a number of aspects including load balancing, availability, failure detection and recovery, and lifetime management. Services are published and deployed with associated metadata describing the service type. This same metadata may be used subsequently by interested parties to discover services. The infrastructure uses peer-to-peer (P2P) overlay technologies to abstract over the underlying network to deploy and locate instances of those services. It takes advantage of the P2P network to replicate directory services used to locate service instances (for using a service), Service Hosts (for deployment of services) and Autonomic Managers which manage the deployed services. The P2P overlay network is itself constructed using novel Web Services-based middleware and a variation of the Chord P2P protocol, which is self-managing.Postprin

Community Economic Development Initiative (CEDI) Programme Evaluation

Shotton Colliery Community Economic Development Initiative (CEDI) began in 2007. It is one of three CEDI areas funded through the Single Programme. CEDI builds on a previous County Durham-wide programme, Settlement Renewal Initiatives (SRIs), which ended in 2006. Shotton Colliery CEDI receives funding from One North East, the Neighbourhood Renewal Fund and the Shotton Investment Pot. The aim of CEDI is to improve the local economy in Shotton Colliery by designing projects to support local people and businesses. The emphasis is on removing barriers to employment, supporting skills and training, and stimulating business growth. CEDI’s outcomes are: 1. New economic activity contributing to diversification in the local economy; 2. Enhance the contribution made by the settlement to the local economy; 3. Reduced unemployment and worklessness; 4. Increased skill levels and educational attainment; 5. Improved access to employment through addressing multiple barriers such as poor health, childcare responsibilities and transport; 6. Increased economic opportunities through enhancing the built and natural environment. CEDI outcomes are organised into four themes: community enterprise; reducing worklessness; education, training and skills, and business support and stimulating entrepreneurship. Projects to achieve the outcomes include the development of community enterprises such as a community café, increasing the range of leisure, welfare and learning opportunities offered by the community centre, improved broadband access for the area, and initiatives to support unemployed people and encourage business growth. Shotton Partnership 2000 Ltd oversees the CEDI along with partner agencies including Shotton Parish Council and Easington District Council. It commissioned this independent evaluation in November 2007. The evaluation had the following objectives: to consider the effectiveness of the delivery of Shotton CEDI against the outputs and outcomes included in the project’s approval; to examine the particular circumstances that exist in Shotton and which may have impacted on the delivery of CEDI; and to recommend potential activities and outcomes that would be of benefit to the community of Shotton and match the aspirations of those supporting the initiative in its continuation

Iowa Communications Network Performance Report, FY2007

Agency Performance Repor

Hierarchical video surveillance architecture: a chassis for video big data analytics and exploration

There is increasing reliance on video surveillance systems for systematic derivation, analysis and interpretation of the data needed for predicting, planning, evaluating and implementing public safety. This is evident from the massive number of surveillance cameras deployed across public locations. For example, in July 2013, the British Security Industry Association (BSIA) reported that over 4 million CCTV cameras had been installed in Britain alone. The BSIA also reveal that only 1.5% of these are state owned. In this paper, we propose a framework that allows access to data from privately owned cameras, with the aim of increasing the efficiency and accuracy of public safety planning, security activities, and decision support systems that are based on video integrated surveillance systems. The accuracy of results obtained from government-owned public safety infrastructure would improve greatly if privately owned surveillance systems ‘expose’ relevant video-generated metadata events, such as triggered alerts and also permit query of a metadata repository. Subsequently, a police officer, for example, with an appropriate level of system permission can query unified video systems across a large geographical area such as a city or a country to predict the location of an interesting entity, such as a pedestrian or a vehicle. This becomes possible with our proposed novel hierarchical architecture, the Fused Video Surveillance Architecture (FVSA). At the high level, FVSA comprises of a hardware framework that is supported by a multi-layer abstraction software interface. It presents video surveillance systems as an adapted computational grid of intelligent services, which is integration-enabled to communicate with other compatible systems in the Internet of Things (IoT)