Abstract:
This research aimed to develop software tool for reducing time of production planning and
MRP. The time of planning can be reduced at least 50%. The planner has to consider many
factors of production such as production capacities, demand of raw materials, inventory level as
well as demand of finished goods. Besides, if there were errors in raw materials planning, the
ordering cost including holding cost can be approximately 300,000 Baht/month.
After the developed software tool was implemented and tested with real operation, it was
found that the time of production and raw materials planning can be reduced. Daily planning was
reduced from 6 hours to 4 hours, weekly planning was reduced from 2 days to 8 hours, and
monthly planning was reduced from 4 days to 12 hours respectively. In conclusion, this
developed software can reduce production time and demand of raw material at 55.56%.