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Production Scheduling Software Asprova Newsletter (August 2011)
No.1 in Japan(48.8% market share) with 1591 users worldwide
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Asprova established an office in Shenzhen, China
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To give better support and expand market in South China, we established an
office in Shenzhen in August,2011.
Company Name: Asprova Shenzhen office
Address:
Suite 511 HSH Building，No.321 Xixiang Road，BaoAn，ShenZhen China
TEL :+86-755-2917-9897
FAX :+86-755-2917-9848
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Chapter 01 – What is a Production (Planning) Scheduler?
-Speed is Critical to Production Scheduling
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Beginning in 1994, I started with the idea that the work of the human production
scheduler would be greatly simplified if I developed a
production scheduler that could create schedules easily on a personal computer.
At that time there were no textbooks on this because there
was no general-purpose production scheduler and no sample product.
Personal computers at that time were of low performance and there was
no premise that they could be used for production schedulers. But now
more than a decade later, the environment has changed completely.
Personal computer performance has been vastly improved, there is an
adequate body of knowledge about production schedulers, and although
not 100 percent perfect, answers can be rapidly given to questions
about large-scale scheduling.
As to the point of whether the production scheduler is 100 percent
perfect, there is something that needs to be said about one of the
special features of the production scheduler. For example, the way
to (order?) ten different jobs is ten factorial or 3,628,800 ways.
If there are 100, then those can be rowed in 100! ≒10158. Because
the scheduler can handle more than 10,000 jobs in production scheduling
with real data, it calls for a strict optimum solution in limited
time and one can easily see how difficult that is. Incidentally, that
is 10,000! ≒1035660.
Asprova is designed to calculate large volumes of data so that it can
build production schedules at ultra-high speed. There is, strictly
speaking, no optimum solution but results of production schedules
calculated at high speed can be seen by people (visualized) and,
realistically, those things that the computer is deficient in can be
aided by human beings, and the production schedule prepared onsite.
At any rate, we make good advantage of the computer’s high speed and
speed is critical to production scheduling.
Like to read more:
http://www.lean-manufacturing-japan.com/advanced-planning-scheduling/