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Client/Server applications are of increasing importance in
industry, and have been improved by advanced distributed
object-oriented techniques, dedicated tool support and both
multimedia and mobile computing extensions. Recent responses to
this trend are standardized distributed platforms and models
including the Distributed Computing Environment (DCE) of the Open
Software Foundation (OS F), Open Distributed Processing (ODP), and
the Common Object Request Broker Architecture (CORBA) of the Object
Management Group (OMG). These proceedings are the compilation of
papers from the technical stream of the IFIPIIEEE International
Conference on Distributed Platforms, Dresden, Germany. This
conference has been sponsored by IFIP TC6.1, by the IEEE
Communications Society, and by the German Association of Computer
Science (GI -Gesellschaft fur Informatik). ICDP'96 was organized
jointly by Dresden University of Technology and Aachen University
of Technology. It is closely related to the International Workshop
on OSF DCE in Karlsruhe, 1993, and to the IFIP International
Conference on Open Distributed Processing. ICDP has been designed
to bring together researchers and practitioners who are studying
and developing new methodologies, tools and technologies for
advanced client/server environ ments, distributed systems, and
network applications based on distributed platforms.
Client/Server applications are of increasing importance in
industry, and have been improved by advanced distributed
object-oriented techniques, dedicated tool support and both
multimedia and mobile computing extensions. Recent responses to
this trend are standardized distributed platforms and models
including the Distributed Computing Environment (DCE) of the Open
Software Foundation (OS F), Open Distributed Processing (ODP), and
the Common Object Request Broker Architecture (CORBA) of the Object
Management Group (OMG). These proceedings are the compilation of
papers from the technical stream of the IFIPIIEEE International
Conference on Distributed Platforms, Dresden, Germany. This
conference has been sponsored by IFIP TC6.1, by the IEEE
Communications Society, and by the German Association of Computer
Science (GI -Gesellschaft fur Informatik). ICDP'96 was organized
jointly by Dresden University of Technology and Aachen University
of Technology. It is closely related to the International Workshop
on OSF DCE in Karlsruhe, 1993, and to the IFIP International
Conference on Open Distributed Processing. ICDP has been designed
to bring together researchers and practitioners who are studying
and developing new methodologies, tools and technologies for
advanced client/server environ ments, distributed systems, and
network applications based on distributed platforms."
Client/server applications are of increasing importance in
industry; they are a significant first step towards a global
distributed processing model. A very recent response to this trend
is the Distributed Computing Environment (DCE) of the Open Software
Foundation (OSF), the emerging new industry standard for
distributed processing. The papers in this volume discuss the
client/server approach based on DCE, illustrating and analyzing the
functionality of important DCE components and applications. A
number of contributions also focus on new models beyond traditional
client/server processing and beyond DCE. The papers in this volume
were presented at the International Workshop on the OSF Distributed
Computing Environment, held in Karlsruhe, Germany, October 7-8,
1993. Following an introductory chapter, the contributions are
grouped into parts on DCE analysis and comparison, application
support, methods and tools, RPC extensions, and object-based
systems.
At the beginning of their studies students of architecture are
confronted with a wealth of different ways in which to visually
present their designs. Expressing ideas in the form of drawings and
models is usually required in the early stages of studying:
"learning by doing" is the only way for students to quickly develop
a repertoire for their design work. However, there are important
issues to consider between the phases of devising the spatial
concept and recreating it in a two- or three-dimensional drawing or
physical model: How to construct a perspective freehand drawing?
What plan drawings are necessary to present my design? What scale
should my model be and what materials should I use to construct it?
Basics Architectural Presentation combines the highly successful
single volumes Technical Drawing, Freehand Drawing, CAD,
Modelbuilding (new edition) and Architectural Photography from the
series BASICS in a new volume. Step-by-step, it conveys possible
ways to present architectural projects throughout the various
project phases. In an informative and practical approach, the
publication discusses the basics of architectural representation
from freehand drawing, which is especially important in the design
phase, to the plan drawing, model, and architecture photography.
The student architect learns the tools necessary for presenting his
or her work, supported by many concrete examples and practical tips
that are directly applicable.
Models are spatial presentations of architectural concepts,
miniature representations of the proposed buildings. Better than
any drawing or computer simulation, they help to create a better
spatial impression of the projected building, because anybody
looking at a model can select the angle of view and thereby obtain
a personal impression of the space. Designing and presenting a
design concept with the help of a model is an important step in
creating an awareness of the intended design. Basics Model Building
provides students with concise knowledge of model typologies,
materials, tools, and techniques for the professional creation of
working and presentation models. The new edition of this successful
volume has been updated and supplemented, in particular in the
field of digital model building.
At the beginning of their studies students of architecture are
confronted with a wealth of different ways in which to visually
present their designs. Expressing ideas in the form of drawings and
models is usually required in the early stages of studying:
"learning by doing" is the only way for students to quickly develop
a repertoire for their design work. However, there are important
issues to consider between the phases of devising the spatial
concept and recreating it in a two- or three-dimensional drawing or
physical model: How to construct a perspective freehand drawing?
What plan drawings are necessary to present my design? What scale
should my model be and what materials should I use to construct it?
Basics Architectural Presentation combines the highly successful
single volumesTechnical Drawing, CAD, Modelbuilding, and
Architectural Photography from the series BASICS with a yet to be
published volume entitled Freehand Drawing. Step-by-step, it
conveys possible ways to present architectural projects throughout
the various project phases. In an informative and practical
approach, the publication discusses the basics of architectural
representation from freehand drawing, which is especially important
in the design phase, to the plan drawing, model, and architecture
photography. The student architect learns the tools necessary for
presenting his or her work, supported by many concrete examples and
practical tips that are directly applicable.
Das Buch beschreibt die wichtigsten Themen der Informatik exakt und
kompakt, wie sie fur Ingenieure wichtig sind. Die Abschnitte des
Buches sind modular angeordnet und konnen einzeln, voneinander
unabhangig gelesen werden. Die fur Ingenieure wichtigen Themen wie
Internet, Simulation, Datenbanken und Multimedia werden anhand
zahlreicher Praxisbeispiele dargestellt. Neben dem kompakten Format
des Buches wird auch durch das Layout die Information kompakt
angeboten.
Dem Leser wird gezeigt, wie eine umfassende und
plattformunabhangige Losung zur Umsetzung von mehrseitiger
Sicherheit in Kommunikationsnetzen aussehen kann. Der auf CD
beigelegte, in Java geschriebene Prototyp unterstutzt ein
spielerisches Sich-vertraut-Machen mit der Konfiguration von
Schutzmechanismen fur mehrseitige Sicherheit. Es geht um die
zielgerichtete Aushandlung von Sicherheitsanforderungen zwischen
allen Beteiligten und wie dabei Konflikte um gegensatzliche
Anforderungen gelost bzw. entscharft werden konnen. Im Buch werden
Grundlagen zu Schutzzielen und zur Konfigurierung und Aushandlung
von Sicherheitsfunktionalitat beschrieben.
Das Distributed Computing Environment (DCE) der Open Software
Foundation (OSF) stellt eine Reihe von Softwarekomponenten bereit,
um die Erstellung verteilter Anwendungsprogramme auf Rechnernetzen
zu erleichtern. Dem Leser wird ein praxisnaher Uberblick uber OSF
DCE vermittelt und konkrete Hilfestellung beim Einsatz dieser
Systemumgebung geboten. Neben der detaillierten Darstellung der
einzelnen Komponenten werden auch konzeptionelle Grundlagen
erlautert, um das Verstandnis auch ohne weiteres Spezialwissen zu
gewahrleisten. Graphische Illustrationen, tabellarischer Vergleich
wichtiger Grundkonzepte, Programmbeispiele, Informationen uber
Produkte und Systemlosungen, sowie Index und Literaturverzeichnis
erhohen den praktischen Nutzen des Werkes.
Gegenstand dieses Buches ist die Entwicklung komplexer verteilter
Anwendungsprogramme. Thema ist nicht, wie in den traditionellen
B}chern }berverteilte DV-Systeme, die Entwicklung oder der Betrieb
von Rechnernetzen, sondern deren Einsatz bei der Entwicklung
verteilter Anwendungen. In Bereichen wie B}roautomatisierung und
Produktionsautomation oder bei Firmen, deren Abl{ufe stark auf
internationale Weitverkehrsnetze abgest}tzt sind
(Fluggesellschaften, internationale Broker-Firmen), spiegeln die im
Buch behandelten Fragestellungen schon heute die Probleme der
Anwendungsentwickler wider; in vielen anderen Industriezweigen
zeichnet sich die Notwendigkeit komplexer verteilter Anwendungen
durch den zunehmenden Zwang zur Verflechtung und zur
Automatisierung bereits ab. Ein Blick auf die in der Industrie
eingesetzten Hilfsmittel zeigt jedoch, da~ diese f}r die erw{hnten
komplexen Anwendungen nicht mehr ad{quat sind. Das Buch richtet
sich in erster Linie an Dozenten, Studenten und Wissenschaftler im
Bereich des Software Engineering, sowie an Softwareentwickler in
der Praxis.
Mit der zunehmenden Leistungsfahigkeit verteilter Rechnersysteme
und dem wachsenden Bedarf fur verteilte Anwendungen steigen auch
die Anforderungen an die Entwicklungsunterstutzung fur solche
Anwendungen. In den letzten Jahren gewannen daher verteilte
objektorientierte Techniken nach dem Vorbild das Systems Smalltalk
zunehmende Bedeutung. Dieses Buch fuhrt zunachst in den verteilten
objektorientierten Ansatz ein und vergleicht diesen mit anderen
Mechanismen zur Erstellung verteilter Anwendungen. In ihrem
Kernteil befasst sich die Arbeit dann mit der Erweiterung dieses
Ansatzes um neue Konzepte zur Steuerung von Objektmigrationen und
zur Verwaltung einer verteilten Anwendungskonfiguration. Dabei
werden integrierte Methoden und Werkzeuge zur statischen und
dynamischen Plazierung der Objekte einer verteilten Anwendung auf
einem verteilten Rechnersystem angeboten. Die Migrationssteuerung
hat die dynamische Zusammenfuhrung kommunizierender Objekte zum
Ziel und umfasst ein verteiltes Laufzeitprotokoll zur Realisierung
von Objektmigrationen, ein Monitorsystem zur Analyse von
Migrationsentscheidungen und eine Beschreibungsnotation zur Vergabe
von Migrationsanforderungen. Die Konfigurationsverwaltung stellt
eine deklarative Konfigurationssprache zur Beschreibung von
Anwendungsstrukturen sowie eine Anderungsnotation zur Anforderung
dynamischer Konfigurationsanderungen zur Verfugung.
The increasingly stringent limitations on emission levels imply
more narrow tolerances of operations, such that diesel engines have
to be continuously monitored in order to ensure the optimality of
the operating conditions. For this purpose, the knowledge of the
engine outputs is a fundamental prerequisite. This knowledge could
be gained either with real sensors or with virtual ones, i.e., with
real-time mathematical models. Currently, the only engine-output
sensors commercially available are those for measuring Lambda and
the NOx concentration level. The aim of this work is thus to
explore the possibilities given by the aforementioned engine-
output sensors for the detection and isolation of faults in the air
and fuel paths of diesel engines. To achieve this objective a
model-based strategy is pursued. First, a mathematical model of the
engine is developed. Successively, control-oriented models for the
real-time computation of the Lambda value and the NOx concentration
are derived from the detailed combustion model. Finally, on the
basis of the control-oriented models developed, the fault detection
and isolation system is realized.
Viele industrielle Anwendungen basieren auf verteilten Systemen.
Derzeit werden sie durch die Integration von Mobilfunknetzen und
mobilen Endgeraten intensiv weiterentwickelt. In dem Band stellen
die Autoren die Grundlagen verteilter Systeme anhand eines
durchgehenden Beispiels dar, das sich an ublichen Standards
orientiert. Der Schwerpunkt liegt auf einer kompakten Darstellung
grundlegender Konzepte und Technologien, wobei auch aktuelle
Entwicklungen diskutiert werden. Die aktualisierte Neuauflage
enthalt zusatzliche Ubungsaufgaben.
Das Architekturmodell ist ein Arbeits- und Entwurfswerkzeug und
Teil der Architekturdarstellung wie die Prasentationszeichnung. Mit
seiner Hilfe wird Architektur erfunden und entwickelt. Mit
einfachen Mitteln wie Pappe koennen schnell Proportionen und
Raumzusammenhange uberpruft werden. Keine andere Darstellungsform
ermoeglicht die sinnlich-haptische Wahrnehmung von Raum und
Architektur, ihrer Oberflachen und ihrer Plastizitat.
At the beginning of their studies students of architecture are
confronted with a wealth of different ways in which to visually
present their designs. Expressing ideas in the form of drawings and
models is usually required in the early stages of studying:
"learning by doing" is the only way for students to quickly develop
a repertoire for their design work. However, there are important
issues to consider between the phases of devising the spatial
concept and recreating it in a two- or three-dimensional drawing or
physical model: How to construct a perspective freehand drawing?
What plan drawings are necessary to present my design? What scale
should my model be and what materials should I use to construct it?
Basics Architectural Presentation combines the highly successful
single volumes Technical Drawing, CAD, Modelbuilding, and
Architectural Photography from the series BASICS with a yet to be
published volume entitled Freehand Drawing. Step-by-step, it
conveys possible ways to present architectural projects throughout
the various project phases. In an informative and practical
approach, the publication discusses the basics of architectural
representation from freehand drawing, which is especially important
in the design phase, to the plan drawing, model, and architecture
photography. The student architect learns the tools necessary for
presenting his or her work, supported by many concrete examples and
practical tips that are directly applicable.
At the beginning of their studies students of architecture are
confronted with a wealth of different ways in which to visually
present their designs. Expressing ideas in the form of drawings and
models is usually required in the early stages of studying:
"learning by doing" is the only way for students to quickly develop
a repertoire for their design work. However, there are important
issues to consider between the phases of devising the spatial
concept and recreating it in a two- or three-dimensional drawing or
physical model: How to construct a perspective freehand drawing?
What plan drawings are necessary to present my design? What scale
should my model be and what materials should I use to construct it?
Basics Architectural Presentation combines the highly successful
single volumesTechnical Drawing, CAD, Modelbuilding, and
Architectural Photography from the series BASICS with a yet to be
published volume entitled Freehand Drawing. Step-by-step, it
conveys possible ways to present architectural projects throughout
the various project phases. In an informative and practical
approach, the publication discusses the basics of architectural
representation from freehand drawing, which is especially important
in the design phase, to the plan drawing, model, and architecture
photography. The student architect learns the tools necessary for
presenting his or her work, supported by many concrete examples and
practical tips that are directly applicable.
Architectural models are used at various stages of a project. As
working models they support the design process: they are made up
from time to time using simple materials, such as cardboard,
without any attempt at accuracy, and continue to be adjusted and
added to as the ideas and the design progress. The point here is to
swiftly check a design idea, to allow it to be continued or
dismissed. Presentational models are more involved; at this stage
the design has been completed and the purpose of the model is to
convey the ideas to the potential user in a clear and
easy-to-understand way. The book Architecture and Model Building
includes outstanding examples explaining the possibilities of this
medium and, at the same time, provides comprehensive information on
materials and techniques.
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