This folder contains the Arena model and Excel file that 
demonstrate the hierarchical modeling approach to building 
supply chain models using SCOR. 

The supply chain simulation framework has been built using 
Arena and Microsoft Excel. 
These two applications communicate using Visual Basic. 

The demo model has four suppliers, one manufacturer, one warehouse, 
two retailers, and two customers. 
The following section gives the details of the simulation model.
 
The model is built in Arena using Arena 5.0 Professional Version. 
To run the model, download the Arena file and the accompanying 
Excel files to a local folder.
Open the Arena file and have Microsoft Excel application open on the PC. 
The model currently runs for a period of 80 days, and ten replications.
These parameters can be changed in the Run->Settings option of Arena. 
 
Control logic for the VBA blocks in Arena can be found in the 
ThisDocument section of Arena VB editor. 
Similarly, Excel files also have corresponding VB macros and procedures.