Glossary

Work order control

Work order control is the management of work order release, status, constraints, execution, and closure in production.

Core Aerospace Operations Execution Aerospace MES and Digital Travelers (Execution Control)ERP / MES / PLM Interoperability

Work order control is the management of a production work order from release through execution, status tracking, completion, and closure. It refers to how an operation keeps the work order aligned with the current manufacturing state, including routing progress, material readiness, labor or machine activity, quality status, holds, rework, and completion reporting.

In manufacturing systems, work order control is commonly handled across ERP, MES, scheduling, quality, and shop-floor data collection systems. ERP may create or release the order, while MES or execution systems often manage detailed operation status, operator actions, digital travelers, inspections, exceptions, and traceability records.

Work order control should not be confused with production scheduling alone. Scheduling determines when work is planned to run; work order control determines whether the released work is authorized, executable, correctly updated, and accurately reflected in the systems of record. It also differs from work instructions, which tell operators how to perform a task, although work instructions may be linked to controlled work order steps.

Common control points include operation start and finish status, material shortages, quality holds, nonconformance or rework loops, missing data, stale updates, and timing differences between ERP and MES. Simple dashboard indicators can support work order control, but they are not a substitute for traceable work order state and constraint visibility.

The execution layer (typically MES, digital travelers, and associated shop-floor systems) does not in itself make you AS9100 compliant, but it is where most of the real traceability evidence is generated and linked. Its role is to enforce data capture, link materials, processes, and people to each serialized unit or lot, and feed trustworthy records back to the QMS and ERP. Its effectiveness depends heavily on integration quality, procedure design, and disciplined use in a brownfield environment.

How should aerospace teams measure work-order aging?

Aerospace teams should measure work-order aging with defined clock rules, aging buckets, and reason codes, not as one generic “days open” metric. The useful view separates queue time, active work, holds, nonconformance, material shortages, engineering delays, and closure latency.

Which aerospace machines should be connected to MES first?

Connect the machines that create the most execution risk first, not simply the newest or most automated assets. Good first candidates are bottleneck, quality-critical, or traceability-heavy equipment with reliable interfaces, stable data definitions, and manageable validation impact.

What real-time data should an aerospace MES surface to supervisors?

An aerospace MES should surface the few real-time signals supervisors can act on immediately: work stuck in queue, labor and machine status, material shortages, quality holds, overdue inspections, route deviations, and blockers that put schedule or traceability at risk. It should not try to replace ERP, PLM, or QMS dashboards, and the answer depends on data quality, integration depth, and how current the plant data really is.

Related Glossary

Work-order execution

Work-order execution is the controlled completion and recording of assigned production or maintenance work.