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The
Schedule Module develops a production plan for processing work
orders through a manufacturing facility. The key features are as
follows:
The
scheduler is extremely fast and can process hundreds of work orders and
thousands of operation steps per minute.
A
Trial schedule permits you to run the scheduler and fine tune it
whenever needed.
The
starting date and the time of day can be set for the scheduler which
allows it to be run as many times as necessary during the course of a
day.
The
scheduler can be run for up to 366 days in the future.
Unreleased
work orders can be optionally included to test for estimated completion
dates.
When
the Trial schedule is acceptable, it can be instantly implemented
for production use.
Implemented
schedules can automatically update the work orders with their new
estimated completion dates.
Jobs
that are in process are scheduled from their last completed operation
and take into consideration the number of pieces reported completed on
each step.
Each
work order can be set to
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Use
only the work centers on the route.
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Seek
an alternate work center if the one on the route is not available
within a specified period of time.
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Automatically
use the work center on the route or an alternate based on which will
most quickly finish the job.
The
single constraint scheduler uses work centers to define factory
capacity.
Dates
the factory is closed and work centers that are unavailable are
automatically taken into consideration each time the schedule is run.
A
technique called finite loading is used to schedule. Finite
loading means putting no more work into a work center than the work
center can be expected to handle.
Work
centers can be optionally marked as infinite capacity. This means
that the choice can be made to selectively treat work centers as if they
had no capacity limits. This permits
The
scheduler can be run at either one hour or one minute
resolution. This means that when an operation step is scheduled to end,
the next step
Both
forward and backward scheduling is supported.
Forward
scheduling involves a technique whereby the schedule proceeds from a
known start date for a work order and sequentially processes the
operations from first to last. Dates generated this way are generally
the earliest start dates for operations.
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Backward
scheduling will give the required start date to meet the required due
date.
On
each work order you can choose whether it is to be scheduled using
forward or backward techniques.
When
a work order is marked for backward scheduling, the Start/Restart
date is ignored and the Needed By date becomes the date from
which the schedule is calculated.
Work
orders can be assigned different levels of scheduling priorities.
Work
orders that have been scheduled and implemented can have their planned
schedules locked to prevent other orders from affecting them.
Work
orders can be made inactive and taken out of the schedule temporarily.
WorkShop
uses the a start/restart date, in the work order header, to set
the date from which the scheduler is allowed to start scheduling the
work order. This accomplishes two purposes:
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Without
loss of priority, a work order’s production release date can be
set in the future so that its scheduled completion date can be made
to match the Needed By date.
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When
a schedule is planned, it compares the next available operation
start date to the Start/Restart date and uses the latest one.
Therefore, by changing a work order’s Start/Restart date, it is
possible to pause a job then automatically restart it at a
pre-planned time without loss of priority.
The
scheduler traps problems and provides a detailed warnings and errors
report.
The
Schedule Inquiry
option uses the TIW Treevision™ technology to provide an Explorer-like
method of viewing scheduling information. Choose from among four topics:
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Usage
by Work Center
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Usage
by Part Number
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Usage
by Work Order
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Usage
by Customer
Each
topic allows you to drill down to detailed information on the loads in
your shop, the schedule of individual jobs, the number and status of
customer orders, and the quantity and projected completion dates of
finished goods being manufactured.
All
of this information is tied to 3D charts that are dynamically updated to
graphically display the information you are viewing.
Click
on the bars on the chart to pop up a window with further details.
Examine
either the Trial or Implemented schedule starting with any
date you set.
The
Order report shows how each work order is scheduled through the
shop on a step-by-step basis.
A
Work Center report shows the daily list of jobs for each work
center and orders them in the priority in which they are to be done.
A
Completion report lists all the work orders, the dates they are
need by and their scheduled completion dates. Orders that miss their
needed by dates are clearly flagged. |