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

14-16 April 1992

Filter Results

Displaying Results 1 - 25 of 59
  • 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
  • Improving the performance of a distributed computing system through inconsistent caches

    Publication Year: 1992, Page(s):18 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    In a server client based distributed computing system, data can be cached at the clients to increase read efficiency and system scalability. When the consistency of the caches can be relaxed and the inconsistency controlled, the performance of the distributed system can be further improved. The authors elaborate on this concept and present a prototype system which they have constructed to show the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Distributed system specification using CO-OPN

    Publication Year: 1992, Page(s):26 - 33
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    The CO-OPN specification formalism for large concurrent systems is presented. CO-OPN includes specification of data types and concurrency through the use of modular algebraic specification and structured algebraic nets. This structure follows the object oriented paradigms. Distributed system specification is studied with CO-OPN through a case study of communication components: the Transit-Node. Th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An algebraic approach to validate communication protocols

    Publication Year: 1992, Page(s):34 - 40
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    Realizing the need for a precise model of computer communications protocols, many different approaches are being investigated. The author presents an algebraic approach to formally specify protocols composed of many modules. The protocols studied are described in the model of finite state machine and then transformed into a set of process equations. The main concept consists in carrying out transf... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Incorporating GUI in integration of molecular biology databases

    Publication Year: 1992, Page(s):404 - 410
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The authors describe a loose coupling approach to integrate molecular biology databases that is based on concepts from graphical user interfaces. The system allows the user to custom build a graphical environment in which a uniform set of commands is provided for all the databases chosen to be members of that environment. The paper also includes preliminary description of a system, currently under... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An approach for fairness improvement in DQDB networks

    Publication Year: 1992, Page(s):165 - 171
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The authors discuss an approach for fairness improvement in distributed queue dual bus (DQDB) network, which is a draft standard for IEEE 802.6 metropolitan area network (MAN). The DQDB medium access mechanism may be unfair for some realistic situations where both throughput and delay are dependent upon the geographic location of each node in the network. The authors analyze the asymmetric access ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A loosely-coupled parallel graphics architecture based on a conflict-free multiport frame buffer

    Publication Year: 1992, Page(s):411 - 418
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    This paper describes a parallel computer architecture for real-time image synthesis. The architecture is based on a loosely-coupled array of general purpose processors equipped with a novel frame buffer subsystem called a conflict-free multiport frame buffer (CFMFB) which enables every processor to write any region of the screen without access conflicts. An efficient polygon rendering method using... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The BERKOM Reference Model: the base for a taxonomy of characteristics of distributed applications

    Publication Year: 1992, Page(s):206 - 212
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Within the BERliner KOMmunikationssystem (BERKOM) a Reference Model has been developed which can be used as a framework to specify, design and describe future oriented telecommunication services. In this paper the principles and the first two levels of refinement are described as a taxonomy of characteristics of distributed applications View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Towards a synthetical approach for the construction of distributed applications

    Publication Year: 1992, Page(s):50 - 56
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (636 KB)

    The paper introduces a new approach which supports the designer of a distributed application in the specification and implementation of different aspects namely application-, management- and communication-oriented aspects. Since these aspects are interrelated in many ways, the authors also address different kinds of relationships. In particular, they sketch out how the management and communication... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • EREBUS: a debugger for asynchronous distributed computing systems

    Publication Year: 1992, Page(s):93 - 98
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    This paper addresses the problem of debugging distributed programs executed on distributed memory parallel computers with message-passing interprocess communication. The main issues of debugging such programs are exposed. Principles for designing and implementing a debugger for programs specified in the Estelle language are presented. All the described solutions have been implemented in a distribu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A stochastic performance modeling technique for deterministic medium access schemes

    Publication Year: 1992, Page(s):346 - 353
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    This paper introduces a modeling technique for deterministic medium access schemes to communication channels. The presented approach is based on the extension of deterministic and stochastic Petri nets (DSPNs) by marking-dependent firing delays of deterministic transitions. This extension allows a compact DSPN representation of deterministic medium access schemes. To illustrate the benefit of the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Towards open CSCW systems

    Publication Year: 1992, Page(s):4 - 10
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    Applications designed to support the work of groups is becoming increasingly important to future distributed systems. This paper considers the role of distributed systems within the development of cooperative systems. In particular, the authors focus on the need to provide open CSCW systems and their impact on distributed systems. The work currently being undertaken in open distributed systems (OD... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Managing personal files across independent file management units

    Publication Year: 1992, Page(s):254 - 261
    Cited by:  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    This paper presents the design and implementation of the PFS personal file management system. PFS provides transparent and reliable access to personal files that are dispersed across reliable independent file servers. PFS is unique and practical since it runs on variations of the Unix system, it does not modify the operating system kernel, and more importantly, it operates in environments in which... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design and implementation of a distributed semaphore facility

    Publication Year: 1992, Page(s):180 - 184
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    This paper describes a distributed semaphore facility called DISEM. DISEM supports semaphore mechanism in a distributed workstations environment, it is implemented at the application level for workstations running a version or a derivative of UNIX operating system which support BSD sockets and System V IPCs. In addition, DISEM also provides fault tolerant service in case a workstation crashes. Gen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A framework for software development for distributed parallel computing systems

    Publication Year: 1992, Page(s):240 - 246
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    A framework for software development for distributed parallel computing systems based on the parallel object-oriented functional computational model PROOF is presented. The authors approach enables programming to be independent of the configuration of the computing system on which the program is executed. In their approach, the programmer does not need to be bothered by the parallelism in the appl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.