I. Interactive input
All the information required in this model is supplied through different questions asked by STBS:

Machines Total number and names
Stages Total number
Assignment of machines to stages Stage number
Orders Total of number
Product identification number id number
Processing times Time of each order in each unit
Due dates Due dates of each order
Starting and ending stages of each order Stage number
Clean-up Times Machine clean-up time
Forbidden assignments order-machine Total number,order and machine
Name of a data file to storage previous data Name