Creating Outside Operations
If the actual work on an operation is performed at
a location other than your shop floor, you must perform special steps
to capture the status of the operation for accurate APS, scheduling, and
costing. If you do not represent and manage an outside operation properly,
the effects can ripple down through subsequent processes, resulting in
an over-conservative plan and schedule.
To capture outside operation status, you can:
- Post
time or quantity remaining on the operation (the Operation Scheduling
parameter on Shop Floor Control Parameters determines whether hours
or pieces remaining are posted). You must specify the operation's
work center as "Outside" on the Scheduling tab on the Work
Centers form. Use this method only if you have accurate status
information for the outside operation.
- Cross reference the outside operation to one or more purchase order
line items. Time remaining on the operation is calculated using the
purchase order line item due dates.
Because you may not necessarily have accurate information to post time
or quantity remaining for an outside operation, we recommend you model
outside operations using the cross-referenced purchase order method (although
you can use that method and also post time or quantity to the operation
if you have the status information).
This topic describes how to set up the cross-referenced purchase order
method.
Setting Up the Outside Operation
In summary, to set up the outside operation, you must create a purchased
material and issue it to the operation. Follow these steps:
- On the Scheduling
Shifts form, create a scheduling shift consisting of one shift
interval that starts on Sunday at 00:00 hours and ends Saturday at
24:00 hours (7 days x 24 hours). You will be using an infinite resource
group to represent this process. Therefore, you need a 24x7 shift
to ensure that the planning and scheduling programs process the infinite
resource consistently (scheduling ignores the shift and considers
the resource always infinite, while APS considers the resource infinite
only while on-shift).
- On the Resources
form, follow these steps:
- Create a new resource for the outside operation.
- On the General tab, you can accept the default values for the
fields.
- Select the Shifts tab. In the ShiftID#1 field, select
your 24x7 scheduling shift.
- On the Resource
Groups form, follow these steps:
- Create a new resource group.
- In the Infinite Capacity After field, enter 0. This
sets the resource to infinite capacity for planning purposes.
- Select the Infinite field to set the resource to infinite
capacity for scheduling purposes.
- Select the Resources tab. Add your outside resource
as a member of the group.
- On the Work
Centers form, follow these steps:
- Create a work center to use for outside operations. You can
use the same work center for more than one outside operation.
- On the Scheduling tab, select the Outside field. Defining
the work center as Outside signals the planning and scheduling
processes to perform special calculations so you don't have to
enter the time the parts have been away from the shop. The Outside
work center also captures the cost in the "Outside"
GL account you set up on the Product
Codes form.
- Select the Resource Groups tab. Add the infinite resource
group you created earlier in this procedure.
- On the Job
Operations form, follow these steps:
- In the WC field, select your outside work center.
- In the Fixed Schedule Hours field (if you are using fixed schedule
hours) or the appropriate hours per piece/pieces per hour field,
enter the number of hours that corresponds to the normal lead
time for this outside operation.
NOTE: Regardless
of whether you specify Fixed Schedule Hours, the system temporarily
switches the operation to fixed schedule hours during the planning
or scheduling run.
- Select the Resources tab and verify that your infinite
resource group is displayed. If it is not, select it now.
- Select the Costs tab and enter 0 in all the costing
rate fields. The material you issue to the operation will capture
the cost of the outside operation.
- On the Items
form, follow these steps:
- Create an item to represent the item your outside operation
will be providing.
- In the Source field, select Purchased. This allows you
to cross reference the material on the bill of material to a PO.
- In the Type field, select Other. This Type code prevents
the system from creating planned orders for this item (instead,
you will use the cross-reference feature).
- Consider how to track cost for this purchased item. To apply
the cost of the outside operation only to this order, set the
Cost Type to Actual, set the Cost Method to Specific,
and select the Lot Tracked field.
- On the Job
Materials form, follow these steps:
- Find the job and your outside operation.
- Add a material record for the outside operation item.
- In the Quantity field, enter 1.
- Select the Lot field (so the quantity is 1 per lot).
Processing the Outside Operation
After setting up the outside operation, follow these steps to process
it.
- On the Unposted
Job Transactions form, enter a transaction to move the WIP from
the previous operation to the outside operation.
- Use the Post
Job Transactions form to post the transaction.
- On the Job
Operations form, make sure all operations previous to the outside
operation are marked as Complete.
- Create a cross-referenced purchase order line item. We recommend
you do this as soon as you start the operation. Follow these steps:
- Open the Job Materials form.
- Find your outside material record.
- Select the Source tab.
- In the Ref field, select Purchase Order.
- Click the Source button to create the cross reference.
- Click the Source button again to display the Purchase
Order Lines form.
- On the General tab, set the Due Date of the cross-referenced
PO line item to the date you expect to receive the outside materials
from the vendor.
- Select the Costs tab. Specify the correct cost on the
purchase order.
- Physically send the purchase order and materials to your vendor.
- Adjust the PO line item due date as necessary.
Receiving the Outside Materials
- Use the Purchase
Order Receiving form to receive the outside materials from the
vendor.
- The receipt transaction automatically opens the Job
Material Transactions form. On this form, issue the materials
to the job.
- After you issue the materials, the Post
Job WIP Move Transactions form opens automatically. On this form,
record this operation complete and move the materials to the next
operation.
How the System Calculates Outside Operation Duration
NOTE: If you are
not using the cross-referenced purchase order method, and are posting
time on the operation, the system plans the outside operation Run Duration
normally (based on posted time/quantity).
The system considers the due date of the outside operation's cross-referenced
PO line item when it calculates the operation duration. Basically, the
system may reduce or extend the outside operation's duration, provided
the operation is the first open (that is, not posted Complete) operation
in the routing.
- If all of an outside operation's cross-referenced PO lines are
Complete or Filled, the system sets the Run Duration, Move, Queue,
and Finish fields to 0.
- If any PO line has a status of Ordered, and the operation has been
started (that is, operation quantity received is greater than 0),
the system adjusts the Run Duration as shown in the table below.
If... |
Then... |
This Operation is the first open operation in the routing.
OR
The normal Run Duration value (based on posted time/qty) is
greater than the Due Date/time of the latest cross-referenced
PO line item - Current Time. |
The system sets the Run Duration to Due Date/time of the
latest cross-referenced PO line item - Current Time. The Move,
Queue, and Finish hours fields are set to 0.
If the adjusted duration is less than 0, the system sets the
operation's Run Duration to 0.
NOTE: The time value on the Due Date comes from the Supply
Time field on the Planning Parameters form. |
Operations previous to this one exist, and this operation
has received at least one piece. |
Set the Run Duration to the earlier of (1) the normal duration,
based on posted time and quantity or (2) the Due Date/time
of the latest cross-referenced PO line item - Current Time. |
Operations previous to this one exist, and this operation
has not received at least one piece. |
Set the Run Duration to the normal duration, based on posted
time and quantity. |
Related Topics
APS Overview
Scheduling
Overview
Costing Overview
Cross-Referencing
a Job Material to a Purchase Order
General
Ledger Overview
Moving
Purchased Items from a P O into a Job Operation
Receiving
Cross-referenced Items