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Proceedings Eighth IEEE Workshop on Future Trends of Distributed Computing Systems. FTDCS 2001

2-2 Nov. 2001

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  • Proceedings Eighth IEEE Workshop on Future Trends of Distributed Computing Systems. FTDCS 2001

    Publication Year: 2001
    Request permission for commercial reuse | PDF file iconPDF (152 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 2001, Page(s): 232
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    Freely Available from IEEE
  • Automated support for quality requirements in Web-service-based systems

    Publication Year: 2001, Page(s):48 - 54
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB) | HTML iconHTML

    The automatic checking of quality requirements will play a fundamental role in the future market of Web services. The reason is that it will allow one to build economically-optimal systems whose quality level can be guaranteed. We identify some of the main problems with which this kind of future system is going to be faced, and also make a realistic proposal to solve them. The key point is to view... View full abstract»

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  • Quality modelling for Web-based information systems

    Publication Year: 2001, Page(s):41 - 47
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (126 KB) | HTML iconHTML

    The Internet and World Wide Web have become an important medium of software applications. Web-based information systems are involved in many areas of our everyday life. Today quality issues concerning these systems are attracting growing attention. This paper presents a framework for modelling the qualify of Web-based information systems. First we use information flow analysis to break down a comp... View full abstract»

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  • Context-sensitive object request broker for ubiquitous computing environments

    Publication Year: 2001, Page(s):34 - 40
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB) | HTML iconHTML

    Context-awareness is an important property of applications in ubiquitous computing and communication (ubicomp) environments. Context-sensitive applications use various data from the surrounding environments and the devices to adapt their behavior. Using context as a criterion to transparently establish communication links among devices requires effective system support. A context-sensitive middlew... View full abstract»

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  • Towards information quality based distribution of multimedia streams in mobile environments

    Publication Year: 2001, Page(s):25 - 31
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (119 KB) | HTML iconHTML

    This paper presents a scheme for delivering high quality multimedia streams to Internet-enabled mobile clients. We focus on providing continuous media service with video that is encoded with an object-based approach, such as MPEG-4. Our main goal is to develop strategies for distributing continuous media through a distribution infrastructure to wireless mobile clients. The paper presents schemes f... View full abstract»

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  • End-to-end data transport using SSCOP in ATM networks

    Publication Year: 2001, Page(s):112 - 118
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB) | HTML iconHTML

    The service specific connection oriented protocol (SSCOP) is used in the signaling ATM adaptation layer (SAAL), it can also be used in end-to-end user data transfer. However, the flow control algorithm of SSCOP has not been defined in the specification. In this work, we propose a rate-based flow control approach for use in SSCOP, named RB-SSCOP, which provides an end-to-end reliable data transfer ... View full abstract»

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  • Traffic dispersion strategies for multimedia streaming

    Publication Year: 2001, Page(s):18 - 24
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (155 KB) | HTML iconHTML

    Traditional multimedia streaming techniques usually assume single-path (unicast) data delivery. But when the aggregate traffic between 2 nodes exceeds the bandwidth capacity of single link/path, a feasible solution is to appropriately disperse the aggregate traffic over multiple paths between these 2 nodes. In this paper we propose a set of multi-path streaming models for MPEG video traffic transm... View full abstract»

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  • Low cost routing in mobile ad-hoc networks: is it achievable?

    Publication Year: 2001, Page(s):105 - 111
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (165 KB) | HTML iconHTML

    Cache schemes that adopt timeout (i.e. lifetime) for removing stale information have its correct estimation as basic assumption. An incorrect value for the timeout highly reduces the effect of the cache scheme or, even worst, produces a severe performance degradation rather than an improvement. However, lifetime estimation in mobile ad-hoc networks is difficult to assure due to the rapid and rando... View full abstract»

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  • An active middleware to control QoS level of multimedia services

    Publication Year: 2001, Page(s):126 - 132
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB) | HTML iconHTML

    The provision of novel Internet services has both to specify, and to maintain differentiated Quality-of-Service (QoS) levels. Services should tailor to different user QoS preferences together with the differentiated quality properties deriving from servers and access points and devices, from workstations connected with high-capacity networks to wearable devices exploiting limited-capacity wireless... View full abstract»

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  • Use of context-awareness in mobile peer-to-peer networks

    Publication Year: 2001, Page(s):142 - 147
    Cited by:  Papers (5)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (170 KB) | HTML iconHTML

    Mobile ad-hoc network are an emerging research field due to the potential range of applications that they support and for the problems they present due to their dynamic nature. Peer-to-peer is an example of a class of applications that have recently been deployed on top of ad-hoc networks. In this paper we propose an approach based on context-awareness to allow peer-to-peer applications to exploit... View full abstract»

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  • A design pattern for reengineering Windows software applications into reusable CORBA objects

    Publication Year: 2001, Page(s):215 - 221
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (221 KB) | HTML iconHTML

    CORBA is becoming the most important middle-ware that supports object-oriented and client/server paradigm in distributed computing systems. However the CORBA-based application systems are still scarce up to date. One main reason is that only few CORBA object services have been developed. To have a new CORBA application, a programmer should make efforts to design a program with CORBA interface from... View full abstract»

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  • Fault tolerance as an aspect using JReplica

    Publication Year: 2001, Page(s):201 - 207
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (99 KB) | HTML iconHTML

    Reliability and availability are very important trends in the development process of distributed systems. In order to improve these features, object replication mechanisms have been introduced. Programming replication policies for a given application is not an easy task, and this is the reason why transparency for the programmer has been one of the most important properties offered by all replicat... View full abstract»

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  • Inconsistency tolerance across enterprise solutions

    Publication Year: 2001, Page(s):164 - 169
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (122 KB) | HTML iconHTML

    As every information system becomes connected to every other information system, they form the so-called "information utility". This is the domain in which contemporary distributed systems have to operate. New applications have to be evolved on this platform of existing systems that may hold inconsistent information. Consequently, solutions need to be able work in a world of only partially correct... View full abstract»

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  • Formalization of computer supported cooperative work applications

    Publication Year: 2001, Page(s):185 - 191
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (157 KB) | HTML iconHTML

    From its first appearance in 1984, Computer Supported Cooperative Work (CSCW) has attracted a lot of research attention in distributed systems. Over the past decade, the CSCW community has developed a number of experimental systems and commercial products to support collaboration. However, much of the reported work is highly application-specific. There generally lacks a sound infrastructure to sup... View full abstract»

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  • Towards an aspect-oriented framework in the design of collaborative virtual environments

    Publication Year: 2001, Page(s):9 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (123 KB) | HTML iconHTML

    The increasing complexity in the development of distributed systems has promoted the appearance of new software technologies that complements compositional framework technology providing a high degree of separation of concerns. One of these approaches is aspect-oriented-programming that introduces a new entity, the aspect, to model those features that cut across different components in the system,... View full abstract»

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  • Embedding remote object mobility in Java RMI

    Publication Year: 2001, Page(s):98 - 104
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (116 KB) | HTML iconHTML

    Mobile code offers several capabilities such as bandwidth-efficient communication, disconnected operation, and support for dynamic and flexible systems. Nevertheless, mobile code based programming paradigms have difficulty in flowing from research activities to commercial systems. The main reason seems to be the lack of integration between the language support for mobility and a familiar programmi... View full abstract»

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  • Toward an open and collaborative Internet

    Publication Year: 2001, Page(s):56 - 61
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (778 KB) | HTML iconHTML

    The diffusion of Internet has opened a new era in the development of distributed systems. Today almost every application is developed on the Web. These applications are conceptually traditional applications, since they provide private workspaces that are accessible remotely, or they support access to shared information. New applications need to be conceived to take full advantage of the power of t... View full abstract»

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  • Architecture to support performance monitoring in object based distributed systems

    Publication Year: 2001, Page(s):120 - 125
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (131 KB) | HTML iconHTML

    Current distributed systems are based largely on the client server paradigm that has a relatively simple structure. Technological advances, particularly in object based software design and communication networks, has facilitated both the distribution and execution of software components. However this new environment poses a number of unique problems, such as charging for resources used, finding su... View full abstract»

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  • Software replication in three-tiers architectures: is it a real challange?

    Publication Year: 2001, Page(s):133 - 139
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (162 KB) | HTML iconHTML

    This paper is a first attempt to study the problem of handling software replication in three tiers architectures. In particular a study based on synchronization and communication patterns imposed by replication is presented. We show how the complexity of the replication scheme is affected by the deterministic (or not) behavior of the members of the backtier We also give two generic synchronization... View full abstract»

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  • Towards a mobile computing middleware: Synergy of reflection and mobile code techniques

    Publication Year: 2001, Page(s):148 - 154
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB) | HTML iconHTML

    The increasing popularity of wireless devices, such as mobile phones, personal digital assistants, watches and the like, is enabling new classes of applications that present challenging problems to designers. Applications have to be aware of, and adapt to, frequent variations in the context of execution, such as fluctuating network bandwidth, decreasing battery power changes in location or device ... View full abstract»

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  • QoS-driven resource management in real-time object based distributed computing systems

    Publication Year: 2001, Page(s):222 - 230
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB) | HTML iconHTML

    Quality-of-Service (QoS) driven resource management is a promising notion but has remained far from being established as a sound technology of a general form. The first step needed is to develop a practical and rigorous approach for specification of the QoS requirements associated with application functions. Such an approach must be accompanied by an approach for using such specifications as the m... View full abstract»

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  • Role-based infrastructures for agents

    Publication Year: 2001, Page(s):210 - 214
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (154 KB) | HTML iconHTML

    Multi-agent systems represent the most recent technology to design and develop distributed applications. Agents can also gain advantage from mobility, i.e., the capability of changing execution environment in world modeled as a set of nodes with different resources and services. This technology calls for appropriate local infrastructures to manage the interactions among agents and between agents a... View full abstract»

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  • Assurance technologies for autonomous train on-board computer system

    Publication Year: 2001, Page(s):170 - 175
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (291 KB) | HTML iconHTML

    Railway companies operating in major cities or between major cities must conduct high-density transportation and safely transport as many passengers as possible. Securing transportation capacity and high degrees of safety and reliability are required for train control systems in high-density train operation sections. Of the many lines operated by JR East, the Shinkansen and Tokyo Metropolitan Area... View full abstract»

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  • Voice over IP: Correct hardware/software co-design

    Publication Year: 2001, Page(s):194 - 200
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (142 KB) | HTML iconHTML

    We describe an integrated and compositional technique, together with its supporting toolset, for hardware/software co-design. The co-design process is soundly based upon formal techniques, but includes integrated support for simulation. A unique characteristic of our framework is that it can validate and analyse system's behaviours of interest compositionally and within a single logical formalism,... View full abstract»

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