Showing papers on "Services computing published in 1994"

Wireless data communications

Abstract: Wireless data services and systems represent a rapidly growing and increasingly important segment of the communications industry. In the paper the authors present an overview of this field, emphasizing three major elements: (1) technologies utilized in existing and currently planned wireless data services, (2) issues related to the performance of these systems, and (3) discernible trends in the continuing development of wireless data systems. While the wireless data industry is becoming increasingly diverse and fragmented, one can identify a few mainstreams which relate directly to users requirement for data services. On one hand, there are requirements for relatively low-speed data services supporting mobile users over wide geographical areas, as provided by mobile data networks. On the other hand, there are requirements for high-speed data services in local areas, as provided by wireless LANs. The system-level issues are somewhat different for these two categories of services, and this has led to different technology choices in the two domains, which the authors discuss in the paper. >

The Rampart Toolkit for Building High-Integrity Services

Abstract: Rampart is a toolkit of protocols to facilitate the development of high-integrity services, i.e., distributed services that retain their availability and correctness despite the malicious penetration of some component servers by an attacker. At the core of Rampart are new protocols that solve several basic problems in distributed computing, including asynchronous group membership, reliable multicast (Byzantine agreement), and atomic multicast. Using these protocols, Rampart supports the development of high-integrity services via the technique of state machine replication, and also extends this technique with a new approach to server output voting. In this paper we give a brief overview of Rampart, focusing primarily on its protocol architecture. We also sketch its performance in our prototype implementation and ongoing work.

The Traits of Successful New Service Development

Abstract: Recent changes in the financial services industry have placed unprecedented pressure on senior managers to develop and launch new services. Presents the results of a study into the development activities of new financial services through a comparison of successful and unsuccessful new services. It was discovered that the development activities are more rigorous and comprehensive for successful new services than for failures. Institutions which used a systematic process of well‐defined development stages tended to have higher chances of successful outcomes.

The Development of New Financial Services

Abstract: Although the service sector has gained increasing importance in our economy, very little attention has been paid to how firms actually develop new services. Reports on an investigation into how new retail services are developed in the financial service sector. The authors, by comparing successful and unsuccessful new services, have been able to develop a model that effectively identifies a number of characteristics that distinguish between success and failure.

Managing INTERNET Information Services

Abstract: This book describes in detail how to set up information services to make them available over the Internet. It begins by discussing why a company would want to provide Internet services and how to select which services to provide. Most of the book describes how to set up email services, FTP, Gopher and World Wide Web servers.

Proximity between service producers and service users

Abstract: When do service firms—especially producers of information services - need to locate close to their customers, and when are they free to locate according to other criteria? This question is highlighted by data on interregional trade in services, by questionnaire studies of sales and purchases of services, and by interview studies on the need for proximity to customers and on the consequences for the location of computer services and technological advice. Three types of services are distinguished: (1) Back offices transmit their services via telecommunications and can locate independently of their customers (low rents and wages then are important) (2) Unsophisticated, customized service firms offer frequently used services and must locate close to their customers, both for cost reasons and because mutual knowledge and trust are decisive (3) Highly specialized service firms may locate independently of their customers, because the high value of their services justify any travelling costs connected with meetings (the recruitment of qualified staff then is important).

Network support for personal information services to PCS users

Abstract: Future personal communications services (PCS) networks will provide mobile users with integrated personal information services and applications (PISA), such as personalized news and financial information, banking and file access. The authors propose a system architecture for delivery of PISA based on distributed servers, and discuss the connection-oriented support services it may require from the PCS network. In this architecture real mobility on the part of the user may result in virtual mobility of the server, which the authors propose be handled by a service handoff procedure broadly analogous to a PCS call handoff. They describe components of the service handoff procedure and the PCS network support they entail. They also discuss how users' service profiles can be maintained in this architecture. >

User-based data collection techniques and strategies for evaluating networked information services

Abstract: THE RAPID DEVELOPMENT OF networked information resources and services has not been matched with ongoing assessments of how well these resources and services meet user needs. This article stresses the importance of developing and implementing a range of user-based evaluation techniques as a means of assessing the usefulness of the services, and planning for future services. A number of user-based data collection techniques appropriate for evaluations within the networked environment are described. The article concludes with specific suggestions for enhancing the overall effectiveness of such evaluations.

Customer location services

Abstract: Customer location services enable travellers to conveniently specify their trip starting point, select and locate their destination, and acquire easy-to-use instructions on how to travel to their destination. Advances in hardware, software/databases, and communication systems will dramatically affect the way we travel, whether in an unfamiliar city or own home town. The traditional IVHS concepts for providing such information have concentrated on the in-vehicle systems. Today, the new technologies invite a broader spectrum of possibilities including: enhanced telephone directory services; personal digital assistants and personal computers with network link or wireless communication, and online services. Together these will create the new services, "customer location services (CLS)", to assist the traveller. This paper describes the nature of these emerging services and the technological requirements for their implementation. >

Transactions of professional business services and spatial systems

Abstract: This article is concerned with spatial interaction between suppliers and clients of professional business services. It is often suggested that business services transactions require frequent personal interaction and spatial proximity, to the advantage of large urban service complexes. Survey results, presented in this article, show that modes of interaction vary considerably within the professional business services sector, however, leading to complex spatial patterns of services transaction. A typology of professional business services is presented, useful for the explanation of spatial systems of service transactions.

A practical approach to high assurance multilevel secure computing service

Abstract: Current projects aimed at providing MLS computing services rarely seem to exploit advances in related fields. Specifically, the concepts of data distribution, replication, and interoperation are currently receiving much attention in the commercial database system sector but have yet to be applied to the delivery of MLS computing services. This paper explains how these concepts might kelp deliver MLS computing services relatively, quickly and cheaply, and how they can ease integration of legacy systems and new technology into future MLS cooperative, distributed computing environments. >

The AT&T interactive consumer video services platform

Abstract: Interactive video services for consumers, delivered to residences via broadband networks and standard TV's, could be offered over the next several years. Such services include movie on demand, video telephony, interactive television, home shopping, computer games, etc. Economics dictate that a common infrastructure be deployed that can support all the services envisioned today, with future expandability. This paper presents a comprehensive large-scale end-to-end services platform architecture meeting these requirements and describes the field trials of this system scheduled to begin in 1994. >

Innovation in telecommunication services

Abstract: The dissertation investigates management processes used by organizations to improve the speed and quality of recommendations for the introduction of significant new telecommunications services. With a focus on the very early stages of concept definition, that is, at the "formulation" stage of innovation, the thesis uses an applied, prescriptive approach to communication for innovation management. It poses the following research question: "how can multi-functional teams acquire, process, and present information in order to enhance concept formulation in telecommunications services organizations?" Four studies were conducted in different settings to gain familiarity with seldom seen aspects of the innovation process, to make inter-firm comparisons, and to build and refine a preliminary model illustrating connections between concept formulation and development decisions. The researcher used case studies to look at innovation processes first in depth and then more broadly in telecommunications carriage and vertical markets for telecommunications. The thesis found that the "champions of innovation" technique can be successfully applied to achieve novel concept generation for telecommunications services. With a restricted definition of success which is focused on the output from the team, the "champions of innovation" methodology produced a diverse set of high quality recommendations in a short time relative to other techniques available to the organization. However, when the definition of success was expanded to include the ability of the team to elicit positive development decisions from its sponsors, the results were less than successful. A disconnection can occur between a highly motivated team and under-participating managerial actors. Based on interviews with service formulators, it was speculated that this discontinuity might be avoided through the use of frequent informal communication between management and innovation teams, creating or identifying a champion within senior management ranks. Additionally, firms with clearer strategic objectives are expected to be more successful at generating, recognizing, and acting upon new business opportunities that represent a significant change in market, technology or operation. Finally, successful service innovation teams were observed to make use of novel methods that give shape to the relationships and performances that typify the intangibles of services. The thesis concludes with advice for practitioners and recommendations for further research.

Understanding innovation in social service delivery systems.

Abstract: Progress in the social services is driven by innovation. It depends on the ability of social work researchers and practitioners to find innovative solutions to the problems they face. Innovation entails the creation, adaptation, and adoption of new approaches to service delivery. The most fundamental type of innovation is the creation of a new service product. However, innovations in the way services are delivered are equally important. This paper provides a model for understanding innovation in social services.

Marketing Library Services: A Nuts-and-bolts Approach

Abstract: Marketing library services: a nuts-and-bolts approach , Marketing library services: a nuts-and-bolts approach , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

The ANDECS-CACE framework A RSYST for integrated analysis and design of controlled systems

Abstract: Computer-aided control engineering (CACE) environments, in order to be reusable in a broad spectrum of applications, have to be based on an open software framework which provides seven classes of services: database services; model-definition services; algorithmic services; tool-control services; task-control services; user-interaction services; message services. Details of the ANDECS framework A RSYST are given. >

The Internet: International Information Highway

Abstract: The Internet has had an impact on the lives of millions of people. Many could not work effectively without it. Over the past two or three years a variety of new and exciting information services have appeared on the Internet, each with its own distinct characteristics. Users, and potential users, of the Internet need to appreciate the models on which these services have been built. Presents an overview of the Internet and an analysis of its information services. Explains the relationships between the services to help users make an informed choice.

A review of the technical options for evolving FITL to support small business and residential services

Abstract: Fiber in the loop (FITL) is being implemented in many countries for telecoms services, with fiber directly entering larger business premises. Fiber already serves DLC's, remote concentrators and street multiplexers at the 600-home level for customers and buildings requiring lower numbers of lines. Transport of video over fiber is becoming commonplace, now serving less than 2400 homes. This paper considers scenarios for fiber to penetrate further into the local loop by reviewing access service requirements and some FITL issues. It highlights enabling technologies for telecoms and video services and options for operators to roll out future services using FITL systems. >

Competing through services: strategy and implementation : cases and text

Abstract: Why services? competing through services to meet changing customer expectations what services differentiating market offerings how? building service delivery systems by whom? mobilizing people and partners for service delivery services through what? leveraging information technology to deliver value where? delivering services across countries how well? defining standards and performance for services.

Replicated distributed directory services for mobile communications networks

Abstract: The introduction of mobility into communications networks requires the provision of network-wide information services in order to: enable the mobility service itself; support applications on mobile computing and communications devices; and support users of mobile equipment. To implement these services network-wide, a common platform consisting of a distributed directory service like X500 can be used. One important aspect of these new services is their availability, since in many communications networks the availability requirements are extremely high. >

Functional specifications for collaboration services

Abstract: Describes an attempt at specifying a generic and reusable set of services for computer-supported collaboration among teams engaged in any collaborative process within a distributed organization or group of organizations. The services are cataloged under the headings: information management, group communications, group management, process management, and infrastructure support. >

Impact of CD‐ROM searching on reference and information services in a university library

Abstract: Library services have been tremendously influenced by rapid technological innovations over the years particularly in the area of reference and information services. The adoption of CD‐ROM technology has revolutionised the retrieval and delivery mechanism of information.