ExtendSim

ExtendSim
Original author(s) Imagine That Inc.
Developer(s) Imagine That Inc.
Stable release
ExtendSim 9.2
Operating system Mac OS X 10.4 to 10.6, Windows XP, Vista, 7, 8
Available in English
Type Simulation & Optimization
License Proprietary, Concurrent User Licensing
Website http://www.extendsim.com

ExtendSim (formerly known as Extend) is a simulation program for modeling discrete event, continuous, agent-based, and discrete rate processes. There are four ExtendSim packages: CP for continuous processes; OR (operations research) which adds discrete event; AT (advanced technology) which adds discrete rate, a number of advanced modeling features, and for statistical distribution fitting; and Suite which adds 3D animation.

History

YearFeatures added
1987original release for continuous modeling on the Macintosh
1990discrete event capabilities added
1995release for Microsoft Windows
2008discrete rate and 3D capabilities added

Model construction

Models are created by dragging blocks from a library into a model worksheet. Blocks are connected together to create the logical flow of the model. Data for the model resides in the parameters of the blocks and in a proprietary database. New blocks can be created by combining existing blocks into a single hierarchical block or by programming a block in ExtendSim's c-based language, ModL. The major libraries in ExtendSim are:

Library namePurposeSample blocks
ValueMathematical calculations, remote data access, statistics collectionMath, Read, Write, Mean & Variance
ItemModels discrete event processesQueue, Activity, Resource Pool, Item
RateModels discrete rate processesTank, Valve, Interchange
PlotterDisplays plots and chartsPlotter I/O, Histogram
Animation 2D 3DAnimates the model stateAnimate Value, Animate 3D
UtilitiesModel interface, debugging, and informationButtons, Record Message, Memory Usage

Application areas

Sample applications include resource optimization for food logistics,[1] six sigma process improvement for a hospital emergency department,[2] communication systems,[3] and manufacturing facility design [4]

See also

References

  1. ↑ "Resource Optimization by Simulation Technique in Food Logistics" (PDF). Retrieved 2011-02-11.
  2. ↑ "Simulating Six Sigma Improvement Ideas for a Hospital Emergency Department" (PDF). Retrieved 2011-02-11.
  3. ↑ "NCW End-To-End (NETE) Model For Future C2 Architecture Assessments" (PDF). Retrieved 2011-02-14.
  4. ↑ "Facility Design: Simulation Methodology for Facility Design". Retrieved 2011-02-14.
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