How should I define work centers in my ERP?

Group machines that are true equivalents — same capability, same tooling, same operator skills — into one work center. Keep distinct capabilities separate, even if they look similar. The goal is that the scheduler can freely choose any machine in a work center without the operator having to overrule the assignment.

Should every work center have a capacity calendar?

Yes. Without a calendar (shifts, holidays, planned maintenance) the scheduler will load work into hours that do not exist. The calendar is the single most important configuration step for any finite-capacity scheduler.

Is a work center the same as a cost center?

No, though they are often confused. Cost centers exist for accounting roll-ups and may be very coarse. Work centers exist for scheduling and dispatching and must reflect actual physical capacity. The two should not be conflated in the ERP setup.

Work Center — Manufacturing Scheduling Glossary

Definition

A work center is the smallest schedulable unit on the floor — one machine, a group of interchangeable machines, or a manual station — that shares a routing operation, a capacity calendar, and (typically) a labor pool. Routings reference work centers, not specific machines, when any machine in the group can do the work. The work center is where capacity is consumed and where dispatch lists are posted.

Why it matters

How you define work centers determines what your scheduler can optimize. Define them too coarsely (one "CNC Mills" work center for fifteen machines) and the scheduler cannot sequence setups. Define them too finely (every machine its own work center) and you lose the flexibility to flex work between interchangeable machines. The right granularity is per-machine for distinct capabilities, grouped for true equivalents.

Common failure mode

A shop has one "Lathes" work center covering eight lathes with different bar capacities. The scheduler assumes any lathe can run any job. Operators discover at setup that the assigned lathe physically cannot hold the bar stock, scramble to another machine, and the carefully built sequence collapses.

How Skody approaches it

Skody models each work center with capability constraints (bar size, spindle taper, table size, certifications) so the scheduler only assigns operations to machines that can actually run them. Groups of true equivalents share a calendar and a dispatch list; distinct capabilities are kept separate.

Finite Capacity Scheduling

Scheduling that respects the real, limited capacity of each machine, operator, and tool.

Dispatching

Telling each operator and machine which job to run next, in what order, right now.

Bottleneck

The resource whose limited capacity governs the throughput of the whole factory.

Queue Time

The time a job waits in front of a work center before it actually starts processing.

Production Rerouting

Moving a job from its planned machine or partner to an alternate when conditions change.