Operations Management (33:623:386) 
Professor Eckstein

Instructions for Standard Printouts of YASAI Simulation Models

For the rest of the term the term, I will ask for "standard printouts" of your YASAI simulation models. 

These standard printouts are similar to the standard printouts for optimization models, but there are some differences.

Simulation standard printouts should consist of three sheets.

The first sheet is a values printout of your spreadsheet, showing your model as it normally appears on the screen.  Note that the numbers shown on this printout reflect the outcome of a single recalculation of the spreadsheet, that is, a sample of size 1.  That means it doesn't tell you what the best answer is, the way the values printout does for an optimization model -- it's just a single possible realization of what might happen.

The next sheet is a formulas printout of your spreadsheet model, with each cell showing a formula rather than a value.  Unlike for optimization models, it is not necessary to put annotations on this sheet.  

For simulations that contain large numbers of similar rows, it is OK to omit the repetitive rows from the values and formulas sheets by truncating the printout or using the "hide rows" command (Format -> Row -> Hide in Excel 2003, Home->Cells->Hide & Unhide->Hide Rows in Excel 2007).  

Both the values and formulas printout sheets should have row and column headings (A, B, C, ... along the top and 1, 2, 3, ... along the side; use File->Page Setup->Sheet in Excel 2003, Page Layout->Page Setup->Sheet in Excel 2007).

The third sheet is the YASAI simulation output report for your model.  You should omit all the information to the right of "standard deviation".  There are two possible ways to accomplish this:

To the output report printout, you should add annotations indicating the answer to whatever questions were posed in the homework problem.  These annotations may be done by hand or in Excel.  An example annotation: "Scenario 5 has the highest average profit, and corresponds to a stocking level of 75.  Therefore I would recommend stocking 75 calendars to achieve the highest expected profit."

Note that, due to the random nature of these simulations, it is possible for two people with correct solutions to get slightly differing answers for things like average profit or average cost.  Generally, however, you should get the same choice for the optimal strategy unless there are two choices that are very close in average profit/cost.

Points will be deducted if you fail to follow these guidelines.