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The Supply of Concepts achieves a major breakthrough in the general theory of systems. It unfolds a theory of everything that steps beyond Physics' theory of the same name. The author unites all knowledge by including not only the natural but also the philosophical and theological universes of discourse. The general systems model presented here resembles an organizational flow chart that represents conceptual positions within any type of system and shows how the parts are connected hierarchically for communication and control. Analyzing many types of systems in various branches of learned discourse, the model demonstrates how any system type manages to maintain itself true to type. The concepts thus generated form a network that serves as a storehouse for the supply of concepts in learned discourse. Partial to the use of analogies, Irving Silverman presents his thesis in an easy-to-read style, explaining a way of thinking that he has found useful. This book will be of particular interest to the specialist in systems theory, philosophy, linguistics, and the social sciences. Irving Silverman applies his general systems model to 22 system types and presents rationales for these analyses. He provides the reader with a method, and a way to apply that method; a theory of knowledge derived from the method; and a practical outlook based on a comprehensive approach. Chapters include: Minding the Storehouse; Standing Together; The Cognitive Contract; The Ecological Contract; The Social Contract; The Semantic Terrain.
1 INTRODUCTION These proceedings are the result of a conference on Automating Systems Development held at Leicester Polytechnic, England on 14 to 16 April 1987. The conference was attended by over 170 delegates from industry and academia and it represents a comprehensive review of the state of the art of the use of the computer based tools for the analysis, design and construction of Information Systems (IS). Two parallel streams ran throughout the conference. The academic, or research, papers were the fruit of British, European and Canadian research, with some of the papers reflecting UK Government funded Alvey or European ESPRIT research projects. Two important touchstones guided the selection of academic papers. Firstly, they should be primarily concerned with system, rather than program, development. Secondly, they should be easily accessible to delegates and readers. We felt that formal mathematical papers had plenty of other opportunities for airing and publication. The second stream was the applied programme; a set of formal presentations given by leading software vendors and consultancies. It is clear that many advances in systems development are actually applied, rather than re search led. Thus it was important for delegates to hear how leading edge companies view the State of the Art. This was supported by a small exhibi tion area where certain vendors demonstrated the software they had intro duced in the formal presentation.
It is already a tradition that conferences on operations research are organized by the Mathematisches Forschungsinstitut in Oberwolfach/Germany. The mean point of the 1987 conference was to discuss recentl.v developed methods in optimization theory derived from various fields of mathematics. On the other hand, the practical use of results in operations research is very important. In the last few years* essenti.al progress in this direction was made at the International Insti- tute for Applied Systems Analysis (IIASA) at Laxenburg/Austria. Therefore a three days workshop on Advanced Computation Techniques, Parallel Processing and Optimi- zation organized by IIASA and the University of Karlsruhe immediately followed the Oberwolfach Conference. This volume contains selected pape~s which have been presented at one of these conferences. It:is divided into five sections based on the above topics: I. Algorithms and Optimization Methods II. Optimization and Parallel Processing III. Graph Theory and Scheduling IV. Differential Equations and Operator Theory V. Applications. We would like to thank the director of the Mathematisches Forschungsinstitut Oberwolfach Prof. Dr. M. Barner and the International Institute for Applied Systems Analysis, particularly Prof. Dr. V. Kaftanov, and also to the director of the Computer Center of the University of Karlsruhe Prof. Dr. A. Schreiner for their support in organizing these conferences. We also appreciate the excellent coopera- tion of Springer Verlag. We also thank Dr. P. Recht, Dr. D. Solte and Dr. K. Wieder as well as*Mrs.
Das vorliegende Buch behandelt die Synchronisation als eine der zentralen Funktionen zur Aufrechterhaltung der Integritat in Datenbanksystemen. Der Schwerpunkt liegt dabei auf einer umfassenden Analyse des Einflusses von Synchronisationsmassnahmen auf das Leistungsverhalten von Datenbanksystemen. Nach einer kurzen Einfuhrung in die wesentlichen konzeptionellen Aspekte der Synchronisation werden ausfuhrlich die Implementierungsaspekte der Synchronisationskomponente in Datenbanksystemen diskutiert. Da durch Synchronisationsmassnahmen in praktischen Umstanden moglicherweise erheblich in die parallelen Ablaufe von Transaktionen eingegriffen wird, ist die Auswahl geeigneter Synchronisationsverfahren von entscheidender Bedeutung fur die Leistungsfahigkeit von Datenbanksystemen. Hierin wird mit Hilfe des Verfahrens der Trace-getriebenen Simulation der Versuch gemacht, die Charakteristiken praktischer Anwendungen auf den quantitativen Vergleich von Synchronisationsverfahren zu ubertragen, was in dieser Form bisher noch nicht durchgefuhrt wurde. Die dabei erhaltenen Ergebnisse werden ausfuhrlich diskutiert und im Hinblick auf die Brauchbarkeit neuartiger Synchronisationsverfahren fur praktische Anwendungen bewertet. Synchronisationsmassnahmen zur Aufrechterhaltung der Integritat in Datenbanksystemen erfordern erhebliche Eingriffe in die parallelen Ablaufe im Mehrbenutzerbetrieb mit entsprechenden Konsequenzen auf die Gesamtleistung des Systems. Es wird eine umfassende Analyse der Leistungsfahigkeit von Synchronisationsverfahren auf der Basis eines mit empirischen Daten getriebenen Simulationsmodells beschrieben.
This monograph grew out of a combined effort to prove a conjecture concerning the characterization of Hamiltonian control systems in terms of their variational input-output behaviour. The main concepts and results of this monograph are contained in chapters 1 to 6. Chapter 0 gives a brief introduction to Hamiltonian control systems, with particular emphasis on the relations between physical and control theoretical notions. Indeed, the study of Hamiltonian control systems is one of the places where (theoretical) physics and systems and control theory meet. We conclude the monograph with chapter 7 discussing some possible extensions to the theory presented, as well as some open problems.
Dies ist der Tagungsband der 4. GI/ITG-Fachtagung Messung, Modellierung und Bewertung von Rechensystemen , Erlangen, 29. September-1. Oktober 1987. Tagungsinhalt ist der Austausch neuer Ideen und Erfahrungen bei der quantitativen Untersuchung von Rechensystemen. Dabei werden einerseits das volle methodische Spektrum - Messinstrumentierung/Messung - Modellbildung/simulative und mathematische Modellanalyse - Bewertung und Synthese in leistungsorientierter bzw. leistungs-/zuverlassigkeitsorientierter Sicht abgedeckt sowie andererseits uber praktische Erfahrungen beim Einsatz dieser Methoden und Techniken bei Entwurf, Implementierung/ Installierung und Betrieb einzelner und vernetzter Rechensysteme berichtet. Die Beitrage (13 in Englisch, 11 in Deutsch) behandeln Methoden und Techniken der Beschreibung von Systemen hinsichtlich ihrer Leistungsfahigkeit und Zuverlassigkeit: (Hard- und Software-) Mess- und Monitorsysteme, Charakterisierung von Systembelastungen, Erstellung und simulative/mathematische/hybride Analyse von Systemmodellen, Erfahrungen bei der Bewertung und Optimierung von Rechensystemen.
This volume covers wide areas of interest such as life cycle costing, microcomputers, common-cause failures and space computers. Every effort is made to present difficult material with the aid of an example along with its solution. The material covered is summarized at the end of each chapter. The information is written in a format that allows readers to learn and better understand the philosophy of reliability in computer system design. At the same time, it tests their comprehension through listed exercises.
This book contains the papers presented at the international research sympo sium Solid Modeling by Computers: From Theory to Applications, held at the General Motors Research Laboratories on September 25-27, 1983. This was the 28th syposium in aseries which the Research Laboratories began sponsor ing in 1957. Each symposium has focused on a topic that is both under active study at the Research Laboratories and is also of interest to the larger technical community. Solid modeling is still a very young research area, young even when com pared with other computer-related research fields. Ten years ago, few people recognized the importance of being able to create complete and unambiguous computer models of mechanical parts. Today there is wide recognition that computer representations of solids are aprerequisite for the automation of many engineering analyses and manufacturing applications. In September 1983, the time was ripe for a symposium on this subject. Re search had already demonstrated the efficacy of solid modeling as a tool in computer automated design and manufacturing, and there were significant re suIts wh ich could be presented at the symposium. Yet the field was still young enough that we could bring together theorists in solid modeling and practition ers applying solid modeling to other research areas in a group sm all enough to allow a stimulating exchange of ideas.