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Rootstock Shop Floor Control manages the life cycle of the work order and the routing that is used as a basis for defining the steps or processes that are required in the assembly and/or manufacture of the item on the shop floor. Scheduling and Capacity Requirements Planning is contained in a separate module.
Rootstock Shop Floor module capabilities include: Routing Maintenance, Work Order Add and BOM Explosion, Work Order Firming, Work Order Release and Operation Extract, Work Order Pick, Work Order Operation Time Booking, Work Order Operation Quantity Recordings, Work Order Receipt and Backflush, Work Order Cost, Rework Work Orders, and Refurbishment Work Orders.
Before defining the Routing, the labor grades, departments, work centers, machine master files and processes must be defined by the manufacturing engineer (and cost accountant when denoting the labor grades and departmental standard labor and overhead rates). Those master files having been defined, a Routing can be established for each item.
The Routing will be comprised of a series of steps (i.e. operations). Each operation will denote the work center, machine (if appropriate), labor grade and process – and the time it takes to do a unit or a batch of work. These times can be a) setup, or b) labor assembly or c) machine time. An operation can also be identified as an ‘outside operation’ where the assembly is sent to a vendor for additional processing. For those organizations that want to control the operation’s effectivity date (e.g. the ability to phase in/out certain operations) by item revision or by change order, this capability is also provided.
The Routing can be defined at an item grouping level so that one isn’t required to develop a specific routing for each item yet can still gain the benefit of shop floor operation tracking for a given work order. Routings are also used in a Standard Cost Rollup to compute the labor, direct labor overhead, fringe overhead, machine overhead and subcontract labor cost components of the standard cost of the manufactured item.
Typically the work order is added by MRP and then firmed by the material planner. However, the capability exists to manually add the Work Order in the Work Order Work Bench at a ‘firmed’ status. The user only needs to denote the Item, the Project (if project control is active), the Due Date and the Quantity (and if this is a special type of work order termed ‘rework order’ or ‘refurb order’).
The Work Order Work Bench enables the user to explode the Bill of Material. This process will use the derived scheduled pick date of the components and retrieve the effective bill of material and create work order demands, one for each component. The work order demand quantity required is calculated by multiplying the bill of material quantity per by the work order supply quantity required. There is additional capability to get bill of material ‘override’ information that will denote which work center components should be issued to, so that the work order demand will be added with work center ‘issued to’ information. (Operation Extract – below will link that work order demand to a work order operation). By using this capability the user can control the timing when material is move to the shop floor (only move it to the floor when needed in the manufacturing process).
Planned work orders generated by MRP can be firmed by the material planner. This action will indicate that the planner has taken control of this order and insure that MRP will not delete or modify this work order in the next planning run. MRP may make suggestions to the planner of required changes.
Prior to picking the material from stock, the work order is ‘released’ which is an indication that Production Control now supervises the management of the work order. As part of the work order release process, the work order operation extract will create the work order operations from the effective routing. If there are any work order component demands that designate that components are to be issued to the work center, as part of this extract the work order component demand will be linked to a work order operation.
The next step in the process is the Pick Process of components from stores. Production Control will denote that the work order is to be picked and a work order pick list for all components that are not backflushed will be made available to the store room for picking and sending to the shop floor. Stores will also record the quantity issued.
The direct laborer can record the times spent on an operation. These times are recorded in terms of hours (or fractions of hours). Machine times can also be recorded where appropriate.
The quantity completed and moved to the next operation can be recorded. Based on the routing operation indicators, one transaction could be used to record both a ‘complete and move’ or one transaction can be used to record the ‘complete’ and a second to record the ‘move’.
The quantity that is completed at the last operation and is received into inventory is the Work Order Receipt. For those work order component demands identified as backflush items, the appropriate ‘work order demand issue’ from inventory will automatically be done as part of the work order receipt.
The work order contains all of the costs associated with material component issues and labor and machine time recordings. In a standard cost environment, the work order close process will compute the work order variance.
"Shop Floor Control" is part of the Rootstock Manufacturing and Supply Chain Apps line of products, developed by Rootstock Software.