Building QoS into Distributed Systems


Book Description

Welcome to IWQOS'97 in New York City! Over the past several years, there has been a considerable amount of research within the field of Quality of Service (QOS). Much of that work has taken place within the context of QOS support for distributed multimedia systems, operating systems, transport subsystems, networks, devices and formal languages. The objective of the Fifth International Workshop on Quality of Service (IWQOS) is to bring together researchers, developers and practitioners working in all facets of QOS research. While many workshops and conferences offer technical sessions on the topic QOS, none other than IWQOS, provide a single-track workshop dedicated to QOS research. The theme of IWQOS'97 is building QOS into distributed systems. Implicit in that theme is the notion that the QOS community should now focus on discussing results from actual implementations of their work. As QOS research moves from theory to practice, we are interested in gauging the impact of ideas discussed at previous workshops on development of actual systems. While we are interested in experimental results, IWQOS remains a forum for fresh and innovative ideas emerging in the field. As a result of this, authors were solicited to provide experimental research (long) papers and more speculative position (short) statements for consideration. We think we have a great invited and technical program lined up for you this year. The program reflects the Program Committees desire to hear about experiment results, controversial QOS subjects and retrospectives on where we are and where we are going.




Trends in Distributed Systems: Towards a Universal Service Market


Book Description

USM 2000 is the third event in a series of international IFIP/GI conferences on Trends in Distributed Systems. Following the venues in Aachen, Germany (1996) and Hamburg, Germany (1998), this event in Munich considers the trend towards a Universal Service Market – USM 2000. The trend towards a universal service market has many origins, e.g., the integration of telecom and data communications, the deregulation e?orts with respect to telco markets, the globalization of information, the virtualization of companies, the requirement of a short time-to-market, the advances in network technologies, the increasing acceptance of e-commerce, and the increase in - bility. This leads to new business-to-business (B2B) and business-to-customer (B2C) environments that o?er both challenges and opportunities to enterprises and end-users. There is the need for ubiquitous services, trading, brokering and information management, for service market and business models, and for ?e- ble infrastructures for dynamic collaboration. Researchers, service vendors, and users must cooperate to set up the app- priate requirements for a universal service market and to ?nd solutions with respect to supporting platforms, middleware, distributed applications, and m- agement. The basis for these solution is a common understanding of means for de?ning, creating, implementing, and deploying the service market. Then, s- vice market makers, service aggregators, service auctioneers, ISP, ASP, BPO, and customers can freely interact in a dynamic, open, and universal market place.




Formal Methods for Open Object-Based Distributed Systems


Book Description

Formal Methods for Open Object-Based Distributed Systems presents the leading edge in several related fields, specifically object-orientated programming, open distributed systems and formal methods for object-oriented systems. With increased support within industry regarding these areas, this book captures the most up-to-date information on the subject. Many topics are discussed, including the following important areas: object-oriented design and programming; formal specification of distributed systems; open distributed platforms; types, interfaces and behaviour; formalisation of object-oriented methods. This volume comprises the proceedings of the International Workshop on Formal Methods for Open Object-based Distributed Systems (FMOODS), sponsored by the International Federation for Information Processing (IFIP) which was held in Florence, Italy, in February 1999. Formal Methods for Open Object-Based Distributed Systems is suitable as a secondary text for graduate-level courses in computer science and telecommunications, and as a reference for researchers and practitioners in industry, commerce and government.




Advances in Distributed Systems


Book Description

In 1992 we initiated a research project on large scale distributed computing systems (LSDCS). It was a collaborative project involving research institutes and universities in Bologna, Grenoble, Lausanne, Lisbon, Rennes, Rocquencourt, Newcastle, and Twente. The World Wide Web had recently been developed at CERN, but its use was not yet as common place as it is today and graphical browsers had yet to be developed. It was clear to us (and to just about everyone else) that LSDCS comprising several thousands to millions of individual computer systems (nodes) would be coming into existence as a consequence both of technological advances and the demands placed by applications. We were excited about the problems of building large distributed systems, and felt that serious rethinking of many of the existing computational paradigms, algorithms, and structuring principles for distributed computing was called for. In our research proposal, we summarized the problem domain as follows: “We expect LSDCS to exhibit great diversity of node and communications capability. Nodes will range from (mobile) laptop computers, workstations to supercomputers. Whereas mobile computers may well have unreliable, low bandwidth communications to the rest of the system, other parts of the system may well possess high bandwidth communications capability. To appreciate the problems posed by the sheer scale of a system comprising thousands of nodes, we observe that such systems will be rarely functioning in their entirety.







Object-Oriented Technology: ECOOP 2001 Workshop Reader


Book Description

For the ?fth time in its history, in cooperation with Springer-Verlag, the European C- ference on Object-Oriented Programming (ECOOP) conference series is glad to offer the object-oriented research community the ECOOP 2001 Workshop Reader, a c- pendium of workshop reports, panel transcripts, and poster abstracts pertaining to the ECOOP 2001 conference, held in Budapest from 18 to 22 June, 2001. ECOOP 2001 hosted 19 high-quality workshops covering a large spectrum of - search topics. The workshops attracted 460 participants on the ?rst two days of the conference. Originally 22 workshops were chosen from 26 proposals by a workshop selection committee, following a peer review process. Due to the overlaps in the areas of interest and the suggestions made by the committee six of the groups decided to merge their topicsintothreeworkshops.Thisbookcontainsinformationonthepanel,postersession, and 17 workshop reports, for which we have to thank our workshop organizers, who did a great job in preparing and formatting them. The reports are organized around the main line of discussion, comparing the - rious approaches and giving a summary on the debates. They also include the list of participants, af?liations, contact information, and the list of contributed position papers. Although they usually do not include abstracts or excerpts of the position papers, they do give useful references to other publications and websites, where more information may be found.




Architecting Dependable Systems II


Book Description

As software systems become ubiquitous, the issues of dependability become more and more critical. Given that solutions to these issues must be taken into account from the very beginning of the design process, it is appropriate that dependability is addressed at the architectural level. This book results from an effort to bring together the research communities of software architectures and dependability. Inspired by the ICSE 2003 Workshop on Software Architectures for Dependable Systems, the book focuses on topics relevant to improving the state of the art in architecting dependable systems. The 15 thoroughly reviewed papers originate partly from the workshop; others were solicited in order to achieve complete coverage of all relevant aspects. The papers are organized into topical sections on architectures for dependability, fault-tolerance in software architectures, dependability analysis in software architectures, and industrial experience.




QOS-Enabled Networks


Book Description

Written by two experts in the field who deal with QOS predicaments every day and now in this 2nd edition give special attention to the realm of Data Centers, QoS Enabled Networks: Tools and Foundations, 2nd Edition provides a lucid understanding of modern QOS theory mechanisms in packet networks and how to apply them in practice. This book is focuses on the tools and foundations of QoS providing the knowledge to understand what benefits QOS offers and what can be built on top of it.




Component Deployment


Book Description

Deployment is the act of taking components and readying them for productive use. There may be steps following deployment, such as installation or m- agement related functions, but all decisions about how to con?gure and c- pose/assemble a component are made at the deployment stage. This is therefore the one opportunity in the software lifecycle to bridge the gap between what the component developer couldn’t know about the deployment environment and what the environment’s developer couldn’t know about the open set of depl- able components. It is not surprising that deployment as a dedicated step gains importance when addressing issues of system-wide qualities, such as coping with constrained resources or preparing for component adaptation and system evolution. Yet, component deployment is still a discipline in its infancy: it became mainstream practice only in the mid 1990s. Much of the best practice impulse originated in products like Microsoft’s Transaction Server and its approach to attribute-based programming and later products like Enterprise JavaBeans and now the Corba Component Model. All these address the speci?c needs of enterprise appli- tion servers. However, the potential of the deployment concept goes far beyond this. Deployment can and should touch e?ectively all truly component-based solutions. The proceedings of Component Deployment 2002 represent a good cro- section of the gamut of deployment issues. From customization to address - source constraints to recon?guration of deployed systems and from architecture to design to languages, the avid reader will ?nd some contribution.




Advances in Multimedia Information Systems


Book Description

This book constitutes the proceedings of the Fourth International Workshop on Mul timedia Information Systems (MIS’98) held in Istanbul, Turkey in September 1998. This workshop builds upon the success of the three previous workshops in this series that were held in Arlington, VA, West Point, NY, and Como, Italy. As in the past, this is a small focused workshop, consisting of participants drawn from a wide variety of disciplines (e. g. theory, algorithms, real time systems, networks, operating sys tems, graphics and visualization, databases, artificial intelligence, etc. ), all of which focus on research on one or more aspects of multimedia systems. The workshop program included 19 technical papers, three invited talks, and one panel. Of the technical papers 13 were accepted as regular papers and 6 as short con tributions. These papers cover a number of areas including: Multimedia storage system design Image storage and retrieval systems Quality of service considerations Networking support for multimedia information systems Distributed virtual environments Multimedia system architecture issues The invited talks were given by three experts well known for their work in this area. Satish K. Tripathi’s (University of California, Riverside) talk was on “Quality of Service Support for Multimedia Data on Internet”, Paul Emmerman (US Army Re search Laboratory) discussed “Visualizing the Digital Battlefield”, and Val Tannen (University of Pennsylvania) presented “Heterogeneous Data Integration with Mobile Information Manager”. The panel discussion, organized by Chahab Nastar of INRIA, France, addressed “Trends in Visual Information Retrieval.