Lonnie,
We only do infinite scheduling. Most of our work centers do have finite
scheduling. The finite portion only works when you are scheduling an
individual job. As we schedule an individual job, we don't want that
job to be scheduled all within one day because of infinite work center
scheduling. So as we are a one shift operation and we have shown 8.0
hours of a day, infinite scheduling will still take an operation with 16
hours run time and spread that over two or three days. In 5.0 it should
also finite schedule from one assembly to another. In 3.0 scheduling
did not link well with parent assemblies, where in 5.0 it is supposed to
link better to higher assemblies.
We since we drag and drop, we have taken most of the move and queue
times out of our work centers. We found that added unrealistic pad to
the schedules and again took the pressure off the shop. We have been
detail scheduling for 1.5 years now and will only put them back in when
we really understand the system and Vantage does a better job of
scheduling. About 6-8 months ago, we brought in Epicor's Scheduling
Expert, Steve Wieland (SP?) for a two day training class primarily in
scheduling. I believe Steve used to run all of Epicor's training
classes. He was outstanding. We found that our specific needs training
was less expensive and more worthwhile for several people here than
sending 1 person to a class at Epicor. Steve wanted to get out and
visit with users once in awhile. I would recommend you contact him and
see if he can answer your questions and/or would be willing to provide
another onsite training class.
I ran an experiment for you a short time ago by scheduling two jobs.
Job 1, Has 9 Assemblies and 17 Total 0perations. It took less than a
minute to forward schedule (didn't time that accurately) and 5 seconds
to back schedule.
Job 2, (One of our more complex jobs), Has 33 Assemblies and 86 Total
Operations. It took 6.5 minutes to forward schedule and 50 seconds to
back schedule.
These times are longer than 3.0, but 5.0 does more scheduling functions.
I would be willing to talk with your folks if I could be of assistance.
I know 3.0 scheduling pretty well, but since we just went live with 5.0
on Monday, I've got a lot more to learn.
Hope some of this helps,
Steve
-----Original Message-----
From: Lonnie Drew [SMTP:
lonniedrew@...]
Sent: Wednesday, July 11, 2001 3:10 PM
To:
vantage@yahoogroups.com
Subject: [Vantage] Re: Problem Forward Scheduling Jobs in
5.0
Your message is being forwarding to production control, maybe it
will
help them think 'out of the box'.
In regard to the forward scheduling bug, if your workcenters
aren't
set for finite capacity, can you successfully forward schedule a
job? If so then the theory, that there is a relationship
between
this bug and work centers being set for finite capacity, is shot
down. Just the programmer in me trying to find cause and
effect.
Thanks for the assistance,
Lonnie
ldrew@...
lonniedrew@...
--- In vantage@y..., Steve Wirtz <SWirtz@m...> wrote:
> Lonnie,
>
> We don't finite capacity anything now. We infinite schedule
and
look at
> our work center capacity and load. We also like to keep the
pressure on
> the shop. If we don't, they won't meet the rates they need.
Also,
if
> there is a problem that delays a job, e.g. material, non-
conformance,
> etc., and we have finite scheduled the work center, we find
the work
> center feeling very comfortable as they now have plenty of
time to
> finish the next operation. The shop management and
supervisors
like the
> added pressure as it provides a challenge for them. Don't get
me
wrong,
> they will scream if there is a lot more load than they can
handle.
>
> When we schedule a job we look at work centers that may have a
capacity
> problem and look at the work center visual scheduling board
after
> initial scheduling of the job. Then we drag and drop the
operations to
> fit in the work center scheduling board, then go back and
finish the
> detail job scheduling by drag and drop. This may take a
little
extra
> time, but we end up with a pretty good finite schedule having
handling
> our work center capacity area. In the case of two jobs with
tight
> committed delivery dates, infinite scheduling (with watching
our
> capacities) allows us to schedule more hours than in the
normal day
> which well can make up with overtime, added labor or other
workarounds.
>
> You can check your work center capacity by the priority
dispatch
reports
> and looking at your visual scheduling board. We set up a shop
load
> report in report builder which gives us our shop load in hours
by
work
> center by day. This is better than just looking at priority
dispatch
> and the work center visual scheduling board for us as it also
includes
> the crew sizes and totals the labor for the operation.
>
> Steve
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