PRODUCTION SCHEDULING MANAGEMENT SYSTEM, AND METHOD OF MANAGING PRODUCTION SCHEDULING

A production scheduling management system includes: a long-range production scheduling unit that receives long-range production scheduling information including at least information on a delivery date of each lot, produces a lot processing schedule based on the delivery date of each lot, and outputs a long-range production schedule; a short-range production scheduling unit that receives the long-range production schedule and short-range production scheduling information, produces a short-range schedule of lot processing so as to fulfill the long-range production schedule, and outputs a short-range production schedule; and a work scheduling unit that receives the short-range production schedule and work scheduling information, produces a work schedule so as to fulfill the short-range production schedule, while taking account of conditions of each machine and conditions of each lot, and generates work schedule.