Building a Simulation Object Model of a Legacy Simulation / Simulation Interoperability Standards Organization (SISO) papers
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Authors
Larimer, Larry R.
Buss, Arnold H.
Jackson, Leroy
Subjects
SOM
HLA
ADS
OMDT
Janus
Legacy Simulation
HLA
ADS
OMDT
Janus
Legacy Simulation
Advisors
Date of Issue
1997
Date
Publisher
Monterey, California: Naval Postgraduate School.
Language
Abstract
The Department of Defense proclamation that all simulations comply with High Level Architecture (HLA)
standards prompted the U.S. Army Training and Doctrine Command (TRADOC) Analysis Center (TRAC) to
investigate the feasibility of including Janus in future HLA Federations. One of the Army’s most extensively used
models for training and analysis, Janus is an interactive, six-sided, closed, stochastic high-resolution simulation.
Fielded in 1978, Janus was coded in FORTRAN and, with its numerous revisions and enhancements, represents a
substantial investment for the U.S. Army. As a legacy model coded in a procedural language, there are considerable
challenges for Janus to meet HLA requirements. For example, the notion of an object model definition was not
envisioned during Janus development and is not intrinsic to its world view. In this paper we will describe the
methodology we are using to develop a Simulation Object Model (SOM) of Janus independent of any existing
federation of models. Our experience with this methodology will provide insight into the general problem of
producing an HLA-compliant SOM for a legacy simulation.
Type
Article
Description
Simulation Interoperability Standards Organization (SISO) papers
Series/Report No
Department
Operations Research
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.