MFG/PRO 9.0 User Guide Volume 3: Manufacturing - QAD.com

40 MFG/PRO USER GUIDE — MANUFACTURING
Note Setup and run times are used for operation scheduling, lead time
calculations, product costing calculations, and GL transactions created by
activities such as reporting labor and completing repetitive operations in
the manufacturing modules. Changes to setup and run times should be
coordinated to prevent adverse effects in any one of these areas.
Manufacturing Lead Time
The manufacturing lead time for an item is the sum of its operation lead
times, stated in manufacturing days. Capacity planning uses
manufacturing lead time, in conjunction with the work center or shop
calendar, to determine order release dates.
There may be differences between operation schedules for an order and
the manufacturing lead time for an item due to any one of several reasons.
• The item order quantity used to calculate the manufacturing lead time
may be different than the actual order quantity for an operation,
resulting in differences in the run time for an operation.
• The shop and/or work center calendars may be scheduled for more (or
less) hours than the default calendars used to calculate manufacturing
lead time.
• Queue time for the first operation does not affect its start date;
therefore, it may fall after the release date of an order.
• Two successive operations may overlap.
Subcontract Operations
Some operations may be performed by an outside supplier or
subcontractor rather than by a work center. This requires some special
setup, particularly if you want to include subcontracted operations in
supplier load and capacity reports.
Set up at least one department for outside processing and a separate work
center for each type of subcontract operation. Each supplier or type of
subcontract operation should have at least one work center defined for it.
This lets you specify the work center on dispatch reports, which provide
visibility of upcoming operations.