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27th ASU Conference - ISIMA

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					             27th ASU Conference
Model Oriented Programming and
          Simulation
                    October 11-16, 2001

                    The Gärdeby Hotel
                     Rättvik, Sweden




   Lake Siljan in the heart of Dalarna ( The Valleys ), Sweden


            The conference is arranged by the

           Association of SIMULA Users
                 ASU Secretariat
                      Box 54
              SE – 193 22 SIGTUNA
                      Sweden
                                         The ASU

The Association of SIMULA Users is a professional organization concerned with
computerized modeling of complex systems as well as the design of software using the Object
Oriented Programming (OOP) paradigm. ASU started in 1973 as a group of users of the
SIMULA language. SIMULA is the first OOP language and with the exception of Beta
programming language, other broadly used OOP languages are conceptual subsets of the
SIMULA language whose standard was defined in 1967. Over the years, the ASU expanded
its field of interest to encompass software aids and methodologies in design of complex
system models. ASU considers OOP more as a way of thinking and viewing the world than as
a particular programming technique. ASU organizes annual conferences (1998 Germany,
1999 Hungary, 2000 Malta) and edits a regular Newsletter as a forum for SIMULA users as
well as users of other OOP languages. The main interest of ASU members used to be
simulation based on advanced OOP techniques like nested classes and nested quasi-parallel
systems supported by the SIMULA language and its system class Simulation. The field of
interest has gradually expanded to encompass simulation and OOP techniques generally
including use of OOP methods in other than strictly OOP environments. Interesting
simulation studies are also often presented. A further development of modeling ideas has been
emerging during recent years, which is called model oriented programming together with
languages that support this type of programming.


                                  Conference Topics

The ASU Conferences have always been open to a broad range of topics within the field of
computer programming and object oriented modeling and simulation. The application areas
have also been from a wide spectrum of professional endeavors. Some of the fields that have
been represented are telecommunications, manufacturing, neural networks, ecology, biology,
traffic planning, legal systems, limnolgy, programming languages, railroad management, steel
manufacture, optimization strategies and more. We intend to continue with this tradition of
inviting presentations from a broad field of subjects.

This year, however, we would like to emphasize that one theme is of special interest, and it is
named “model oriented programming”. This is in contrast to “object oriented programming”
where objects, instances of classes, are the main units used to construct programs and
simulation models. Model oriented programming accentuates the idea of using small model
units as basic building blocks. A model unit is typically composed of a few objects as well as
one or more nested sub-models. Also a model unit usually contains some form of internal
behavior with several or many possible courses of action.

Complex technical, ecological and organizational systems are in themselves a set of systems
and sub-systems which can be modeled, simulated and studied with good advantage by using
software that supports creation of nested and branched system structures. The interest for
multilevel, nested and branched program structures extends event to the tools and methods
used to analyze and structure systems as a first step toward programming dynamic models.
One outstanding example is the Unified Modeling Language (UML) as well as the
implementations of UML that provide automated diagramming software that allow one to
document system structures and program structures. Presentations that deal with these
structuring and programming aids are also very interesting subjects at ASU conferences.
Model oriented programming languages (MOPLs) have also been a recurring subject of
discussion at recent ASU Conferences. The modeling features built into these languages need
to reflect and implement the principles of modeling theory. Both theory and programming
language features are interesting subjects for presentations and discussion.

                               The Program Committee

Daniel Einarson, Lund University, Sweden
Göran Fries, Lund University, Sweden
Henry Islo, Ericsson Radio Systems, Sweden
Eugene Kindler, Ostrava University, Czech Republic
Alain Tanguy, University Blaise Pascal, France
Jaroslav Sklenar, University of Malta, Malta

                              Papers and Presentations
Full original papers in MS Word format are to be sent by e-mail to the ASU Secretariat by
July 20th 2001. Papers are usually not more than 10 pages long. Papers will be reviewed by at
least two members of the program committee. The authors will be informed about acceptance
and about proposed changes (if any) by August 20th 2001. Camera ready papers will be due
by September 20th 2001. Those who can not send Word documents by e-mail should contact
the local organizer to find an alternative way. To prepare the format details of the paper in a
uniform way reference is made to the attached Instructions for Authors.

                                 Conference Location
The conference hotel is the Gärdeby Hotel at Rättvik, Sweden. The hotel is situated about two
kilometers to the south east of the town of Rättvik. The hotel is on a large hill overlooking the
Lake Siljan to the west. The lake Siljan is formed by the southern depression of a large
meteorite crater. This crater was formed about 350 million years ago and is considered to be
the third largest meteorite crater on earth. The particular geological formations created by the
impact and later geological processes have made this area an ideal testing ground for the deep
gas theory. More on that during the conference excursion.

Rättvik is located about 250 km north north-west of Stockholm. Several trains per day travel
between Stockholm and Mora, which is the next major town to the west of Rättvik. All trains
travel in a tunnel under the Arlanda airport. If you arrive by air it is very easy to take the
elevator or escalator down to the trains. There are two tunnels, one for the express trains to
Stockholm City and one for the long distance trains. Be sure to descend to the tunnel for long
distance trains and take the train going to Mora. Taxi or hotel minibus will be the best way to
get between the hotel and train station at Rättvik.

Hotel accommodations will be paid directly by the conference participants. Major credit cards
are accepted. For detailed price information please refer to the registration form. A conference
delegate whose presentation has been accepted by the conference committee is eligible for a
subsidy to cover conference costs. Please contact the ASU Secretariat for more detailed
information.
                         Address

ASU Secretariat
c/o Henry Islo
Box 54
SE – 193 22 Sigtuna
Sweden

e-mail ASU@post.utfors.se

Telephone +46 8 404 93 32
Cell phone +46 70 264 65 18
Fax        +46 8 404 39 90

                Conference Web Page

       http://staff.um.edu.mt/jskl1/asu2001/asu2001.html


               Brief Program Outline

Thursday Oct. 11 Arrival , registration and evening get-together
Friday Oct. 12 to Sunday Oct 14 presentation of papers, discussions
Saturday Oct. 13 ASU Annual General Meeting, AGM and Conference Dinner
Monday Oct. 15 Conference excursion
Tuesday Oct. 16 Departure

               Summary of Deadlines

Paper submission deadline: 20 July, 2001
Notification of acceptance: 20 August, 2001
Camera ready papers due: 20 September 2001

				
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