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Proceedings of the Third Workshop on Future Trends of Distributed Computing Systems

14-16 April 1992

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  • Proceedings of the Third Workshop on Future Trends of Distributed Computing Systems (Cat. No.91TH0427-5)

    Publication Year: 1992
    Request permission for commercial reuse | PDF file iconPDF (83 KB)
    Freely Available from IEEE
  • An architecture for multimedia data stream handling and its implication for multimedia transport service interfaces

    Publication Year: 1992, Page(s):269 - 275
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    A multimedia software system architecture should reflect that-for performance reasons-digital audio and video data is routed through different paths in a computer than traditional data. The author proposes a multimedia architecture based on the notion of `stream handlers' which generate, filter, forward or consume multimedia data within a real-time environment. Stream handlers provide control oper... View full abstract»

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  • The performance of multiple traders operating in the same domain

    Publication Year: 1992, Page(s):122 - 128
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    The authors consider the case of trading in an environment of autonomous components. Trading is the process of matching a service request with the offers to support that particular service made by potential servers. In the case of multiple matching offers a selection of the most suitable server can be made according to the properties of the server. Among the possible selection policies the authors... View full abstract»

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  • Support for consistency-preserving dynamic reconfigurations in distributed systems

    Publication Year: 1992, Page(s):185 - 191
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    The author presents a model with its linguistic and operational support for implementing consistency-preserving reconfigurations of distributed applications. This model extends the configuration-programming approach, where a distributed program is implemented at a programming and a configuration level and where dynamic changes are expressed only at the configuration level, i.e. as modifications of... View full abstract»

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  • Structured software fault-tolerance with BSM

    Publication Year: 1992, Page(s):278 - 286
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    This paper presents a structured way of inserting software redundancy in programs and to describe the solutions provided for programming software fault-tolerance techniques. It is based on a data-flow like programming paradigm, which is more suitable to implement fault-tolerant systems, with high levels of flexibility and performability, than conventional imperative programming paradigms. The prop... View full abstract»

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  • A management paradigm in large distributed computing environment

    Publication Year: 1992, Page(s):129 - 134
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    The experience with the development and application of a cooperation multi-agent framework (CMAF) derived mainly from integrated technologies of distributed processing system, knowledge-based system, and object-oriented programming style is reported. At the same time, a two-level control mechanism which contains meta-planning and local-planning is also proposed to achieve the high degree of goodne... View full abstract»

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  • Internetworking across public ATM networks

    Publication Year: 1992, Page(s):150 - 157
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The emergence of public ATM networks, such as B-ISDN and SMDS, is considered to have a high impact on future internetworking environments. This paper presents a new bridging architecture designed for that purpose and discusses its feasibility in TCP/IP networks. The new architecture, called Open Bridging, uses special capabilities of public ATM networks, such as the hierarchical addressing mechani... View full abstract»

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  • Assessment of advanced broadband scenarios in Europe

    Publication Year: 1992, Page(s):194 - 199
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    The Application Pilots of the European programme RACE announce new requirements on future telecommunication facilities. In this context the Exploitation and Service Project (RACE1091) has been established to support and evaluate the pilots. For the assessment a taxonomy was used to classify the pilots user-requirements. The taxonomy is based on the BERKOM Reference Model and supports the identific... View full abstract»

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  • Group orientation: a paradigm for distributed systems of the nineties

    Publication Year: 1992, Page(s):57 - 63
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    Increasing use of distributed systems, with the corresponding decentralization of activities, stimulates the need for structuring those activities around groups of participants, for reasons of consistency, user-friendliness, performance and dependability. Two very diverse fields illustrate this trend: computer supported cooperative group working; distributed computer control. This paper discusses ... View full abstract»

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  • The PTC scheme for designing loosely coupled recoverable processes: issues in realizing bounded recovery time

    Publication Year: 1992, Page(s):287 - 296
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (916 KB)

    The technology for designing loosely coupled distributed computer systems (DCSs) required to tolerate propagated errors caused by software and/or hardware has remained in an immature state. This paper focuses on the type of DCS applications where a system is structured as a set of loosely coupled interacting processes distributed among multiple physical sites and each process is designed in the `p... View full abstract»

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  • Distributed multimedia information presenting environment

    Publication Year: 1992, Page(s):364 - 369
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    Many multimedia systems are focusing on the techniques of teleconferencing applications and discussing the general reference architectures. Generally speaking, a distributed multimedia application is constructed of four layers: the interactive layer, the data composition layer, the network transport layer and the database management system (DBMS) layer. Although these layers are the well-known ref... View full abstract»

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  • Reduction of useless services with timing constraints

    Publication Year: 1992, Page(s):226 - 231
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    A distributed computing system consists of objects and messages which are transmitted between objects. An object can request other objects to do some services by passing messages through a communication system. Usually, the services are done if the message transmission on the communication system is reliable. However, in some applications with timing constraints, a service may be of no value if it... View full abstract»

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  • Message-based microkernel for real-time system

    Publication Year: 1992, Page(s):174 - 179
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    This paper describes the design and implementation of the basic primitives and major components of the message-based microkernel for real-time systems to find out its shortcomings and ways to improve them. The real-time OS with message-based microkernel enables a user to add or change the system services easily for special purposes. But it has rather large overhead of interrupt latency and system ... View full abstract»

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  • An optimal distributed algorithm for failure-driven leader election in bounded-degree networks

    Publication Year: 1992, Page(s):136 - 141
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    The authors consider the leader election problem in point-to-point network where the number of communication links for each node is bounded. Instead of focusing on electing a leader as an initialization step, this paper emphasizes the election of the leader in a fault-tolerant distributed system where the election is triggered by the failure or the abdication of the current leader; it is assumed t... View full abstract»

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  • Using Petri nets as a model for Petri nets

    Publication Year: 1992, Page(s):41 - 47
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    This paper deals with the study of behavioral equivalences between labeled (place/transition) Petri nets preserving the causal relationship among transition firings. This is achieved by defining a very slight modification in the conventional Petri net formalism, leading to associating an additional information to each token of the net. Following this approach, bisimulation equivalences are defined... View full abstract»

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  • Reviewing recovery-management under real-time requirements in distributed systems

    Publication Year: 1992, Page(s):214 - 220
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    Dependencies between computations may lead to unpredictable behaviour of the commit/abort protocols possibly contradicting given real-time requirements. Moreover, it is even possible that the protocols do not terminate. By using redundant dependency storing and by restricting concurrency without isolating computations from each other efficient commit/abort protocols can be provided. Obviously, the... View full abstract»

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  • A demand driven access protocol for high speed networks

    Publication Year: 1992, Page(s):158 - 164
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A demand driven access (DDA) protocol for fiber-optic slotted rings is presented. The proposed protocol is simple and distributed. Under light load conditions, the protocol allows for efficient use of the available bandwidth since no overhead is incurred. In effect, the protocol is demand driven since access arbitration is only activated as the load increases in order to guarantee all nodes a maxi... View full abstract»

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  • IN and TMN-key concepts for future telecom networks

    Publication Year: 1992, Page(s):200 - 205
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    A number of different concepts has been developed for the provision of future open service environments. The most important concepts identified in this context are the intelligent network (IN) architecture, which allows for the flexible and uniform provision of a variety of future telecommunication services by the definition of functional network elements and a set of generic service building bloc... View full abstract»

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  • A logical model of cooperation

    Publication Year: 1992, Page(s):64 - 70
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    This paper proposes a formal definition of the concept of cooperation in distributed systems. The proposed model is based on the use of Modal Logic. More precisely, cooperating activities are seen as activities that can be in different cooperating schemas and, as a consequence, follow different Modal logic systems: T, B, S4, S5. It is in particular shown how this model, using a four-valued logic, ... View full abstract»

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  • Application of autonomous decentralized system to the steel production computer control

    Publication Year: 1992, Page(s):419 - 423
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    In recent years, computer systems for information management and control have requirements for high reliable systems. Consequently hardware reliability has been highly increased, but system failures caused by failure of software modification or software function expansion have been increased. Therefore, online software maintainability and expandability is highly required to fulfil the requirements... View full abstract»

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  • Parallelism and performance in communication subsystems

    Publication Year: 1992, Page(s):339 - 345
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    This paper discusses the impact of various design and implementation factors on the performance of a communication subsystem. Measurements obtained from two different software implementations of the same protocol (ISO 8802-2 logical link control protocol type 2) over three different experimental hardware platforms are used as a basis for comparison. The impact of exploiting parallelism is especial... View full abstract»

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  • Semantic query processing in multidatabase systems: a logic-based approach

    Publication Year: 1992, Page(s):318 - 324
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    A multidatabase system (MDBS) is a system that integrates the operational data of several autonomous database systems and provides a uniform interface and control mechanisms to control access to those data. To efficiently retrieve and manipulate the data stored in MDBS, a metadata dictionary is needed as a repository of essential information for reasoning, controlling, and maintaining the retrieva... View full abstract»

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  • Distributed fault-tolerant routing in Kautz networks

    Publication Year: 1992, Page(s):297 - 303
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    For a Kautz network with faulty components the authors propose a distributed fault-tolerant routing scheme, called DFTR, in which each nonfaulty node knows no more than the condition of its links and adjacent nodes. They construct rooted tree for a given destination in the Kautz network, and use it to develop DFTR such that a faulty component will never be encountered more than once. In DFTR, each... View full abstract»

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  • Constructing an X-based teleconferencing system

    Publication Year: 1992, Page(s):370 - 376
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A teleconferencing system making use of computers and network communication lets people participate in a conference without staying together. During the conference, participants communicate with one another through electronic devices such as terminal, mouse, etc., and network. The authors present the construction of a teleconferencing system based on a standard software system, X/Window System. It... View full abstract»

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  • Scientific visualization: a performance study of CSMA/CD with connected data links-(Hybrid-Ethernet)

    Publication Year: 1992, Page(s):389 - 394
    Cited by:  Papers (2)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Scientific visualization is a method of computing which provides an insight into the visualized-simulated system. Recently, the simulation of different physical processes and systems has developed. Furthermore, the simulated system getting bigger and more sophisticated. Recently, the authors proposed a new hybrid architecture local area network (Hybrid-Meshnet). The Hybrid-Meshnet allows an insert... View full abstract»

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