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Ottawa Center of the McLeod Institute of Simulation Sciences of SCS*
http://ww= w.site.uottawa.ca/~oren/SCS_OC-MISS/index.htm

= = &nb= sp; = &nb= sp; = &nb= sp; * The Society for Modeling and Simulation International

= &nb= sp; = &nb= sp; = &nb= sp; = &nb= sp; =

SEMINAR ANNOUNCEMENT:

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You are cordially invited to attend the seminar<= /o:p>

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Ti= tle:

A Conceptual Modelling Framework for Discrete Event Dynamic Systems

Sp= eakers:

Louis G. Birta and Gilbert Arbez

Da= te, time:

Friday April 22, 2:00 – 3:00PM (discussion period to 4:00PM)

Lo= cation:

Room: 5084, SITE Building (School of Information Technology and Engineering),

800 King Edward Ave., University Ottawa, Ott= awa, Ontario

Pa= rking info:

h= ttp://www.uottawa.ca/services/protect/carteStationnement.html

SITE building is on the l= efmost part of the map.

Covered parking is availa= ble on the other side of the King Edward (access from Mann Ave).

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SYNOPSIS:

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&nb= sp; The development of a conceptual model is an essential phase in for the successf= ul completion of any modeling and simulation project. Such a model serves as a bridge be= tween the generalities of the project description and the precision required for = the development of the simulation program that generates the behaviour data tha= t is of interest. In the realm of continuous time dynamic systems, the conceptual model is a set of different= ial equations and consequently the language of discourse is the language of mathematics, usually complemented by the language that is specific to the domain from which the underlying dynamic system has emerged (e.g., engineer= ing, thermodynamics, aerodynamics, etc.). However, when the system under investigation fal= ls in the realm of discrete event dynamic systems (DEDS) there is, regrettably, no established language for formulating the conceptual model. The consequence is a leap directly= into the intricacies of some programming environment with the unfortunate result that the program displaces the model as the object of discourse. Furthermore, the resulting structu= re (i.e., the simulation program) has little or no value if a change in the programming environment becomes necessary.

&nb= sp; In this presentation, we outline a conceptual modelling framework for DEDS that has general applicability. The framework provides a disciplined context in which the dynamics of the model= to be studied can be formulated and discussed in a concis= e and unambiguous manner. The frame= work builds on the familiar notion of entities, events and activities that are fundamental to any dialog about DEDS. Particular care is taken to ensure that t= he important notions of input and output are treated in a consistent and coher= ent way.

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&nb= sp; The essential features of the framework are outlined= and several examples are provided to illustrate its application.

Speakers:

Lou Birta i= s currently Professor Emeritus in the School of Information Technology and Engineering (SITE), Universit= y of Ottawa. His research interest in modelling= and simulation has extended over several decades. Areas of particular interest have ranged from numerical software (continuous system simulation and optimization) to parallel processing and AI methodology in simulation model validation. More recently, he has contributed = to the identification of the Body of Knowledge that defines the modelling and simulation discipline and to the formulation of a Code of Ethics for modell= ing and simulation professionals.

is currently a Lecturer in the School of Information Technology and Engineering (SITE), Unive= rsity of Ottawa and has t= aught the senior undergraduate/graduate course in modelling and simulation offere= d by SITE. He has an extensive background in a wide range of software engineering applications that includ= e data communication protocol test systems and X.500 bas= ed directory systems.

For additional info: lbirta@site.uottawa.ca=

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OC-MISS/SCS

Ottawa Center of the McLeod Institute of Simulation Sciences of SCS*

= = &nb= sp; = &nb= sp; = &nb= sp; * The Society for Modeling and Simulation International

SEMINAR ANNOUNCEMENT: