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
| Year | Features added |
|---|---|
| 1987 | original release for continuous modeling on the Macintosh |
| 1990 | discrete event capabilities added |
| 1995 | release for Microsoft Windows |
| 2008 | discrete 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 name | Purpose | Sample blocks |
|---|---|---|
| Value | Mathematical calculations, remote data access, statistics collection | Math, Read, Write, Mean & Variance |
| Item | Models discrete event processes | Queue, Activity, Resource Pool, Item |
| Rate | Models discrete rate processes | Tank, Valve, Interchange |
| Plotter | Displays plots and charts | Plotter I/O, Histogram |
| Animation 2D 3D | Animates the model state | Animate Value, Animate 3D |
| Utilities | Model interface, debugging, and information | Buttons, 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
- Discrete event simulation
- Computer model
- Process optimization
- Simulation software
- list of discrete event simulation software
References
- ^ "Resource Optimization by Simulation Technique in Food Logistics" (PDF). Retrieved 2011-02-11.
- ^ "Simulating Six Sigma Improvement Ideas for a Hospital Emergency Department" (PDF). Retrieved 2011-02-11.
- ^ "NCW End-To-End (NETE) Model For Future C2 Architecture Assessments" (PDF). Retrieved 2011-02-14.
- ^ "Facility Design: Simulation Methodology for Facility Design". Retrieved 2011-02-14.