ExtendSim

ExtendSim (formerly known as Extend) is a simulation program for modeling discrete event, continuous, agent-based, discrete rate, and mixed-mode processes. There are three ExtendSim packages: CP for continuous processes; DE which adds discrete event technology; and Pro which adds discrete rate and reliability block diagramming modules.

ExtendSim
Original author(s)Imagine That Inc.
Developer(s)Imagine That Inc.
Stable release
ExtendSim 10.0.5
Operating systemWindows 10, 8.1, 8, 7 Service Pack 1, Server 2016, Server 2012, or Server 2008 R2
Available inEnglish
TypeSimulation & Optimization
LicenseProprietary, Individual, Node-Locked, and Floating Licenses
Websitewww.extendsim.com

History
YearFeatures added
1987Original release for continuous modeling on the Macintosh
1989 Discrete event capabilities added
1992Hierarchical modeling, Cloning, Animation, Interactivity
1994 Sensitivity Analysis, interface to Microsoft Excel
1995Release for Microsoft Windows
1998 Scripting, Activity-Based Costing
2001 Optimizer, ActiveX/COM and ODBC support, source code debugger
2002 FTP support
2007 Changed product name from Extend to ExtendSim, internal database
2008Discrete rate and 3D capabilities added
2010 Scenario Manager, Advanced Resource Manager
2013 ADO database support, Flow attributes
2018 Integrated reliability diagramming, cloud-based ASP

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, Equation, Read, Write, Mean & Variance
ItemModels discrete event processesQueue, Activity, Resource Pool, Item
RateModels discrete rate processesTank, Valve, Interchange
Reliability Reliability block diagramming Start Node, Component, End Node
ChartDisplays plots and chartsBar, Scatter, Histogram
Report Reporting model results Reports Manager, Cost Stats, Item Log Manager
Animation3DAnimates the model stateAnimate Item, Animate Value
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). Archived from the original (PDF) on 2011-07-20. 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". Archived from the original on 2011-10-03. Retrieved 2011-02-14.
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