
154 n Designing Complex Systems
3. e Execute subroutine, which executes when called from the Model mod-
ule. It calls the three subroutines Read_Master_Input, Compute, and
Write_Master_Output.
4. e Read_Input subroutine, which reads the input values from the
worksheet.
5. e Compute subroutine, which carries out the calculations modeling the ele-
ment functionality.
6. e Write_Output subroutine, which writes the results of the Compute sub-
routine to the worksheet.
7. e Read_Master_Input subroutine, which reads the input values from the
Model worksheet.
8. e Write_Master_Output subroutine, which writes the results ...