Work Breakdown Structure
A Work Breakdown Structure divides a large maintenance project, shutdown, or overhaul into manageable deliverables and work packages.
What this term means in maintenance
A Work Breakdown Structure divides a large maintenance project, shutdown, or overhaul into manageable deliverables and work packages.
How a WBS is organized
A WBS may break work into:
- Plant area
- System
- Asset
- Discipline
- Work package
- Activity
- Deliverable
Practical example
A turnaround WBS separates vessel inspection, piping repair, electrical work, instrumentation, utilities, and startup.
Planning benefits
The structure supports scope control, ownership, scheduling, cost, progress, and reporting.
WBS versus schedule
The WBS defines the work scope.
The schedule defines timing and sequence.
Common mistake
Building the WBS around organizational departments alone can hide the actual deliverables and system dependencies.
Related concepts
Related maintenance terms
Keep exploring connected CMMS, reliability, and maintenance planning terms.
Maintenance Work Package
A maintenance work package is the complete set of information and resources prepared for executing a maintenance job or group of related jobs.
Shutdown Maintenance
Shutdown maintenance is planned work performed while equipment, a production line, or an entire facility is intentionally taken out of service.
Turnaround Maintenance
Turnaround maintenance is a large, planned facility or process outage used to complete major inspection, repair, replacement, modification, and compliance work.
Glossary FAQs
- What does WBS stand for?
WBS stands for Work Breakdown Structure.
- How is WBS different from a schedule?
The WBS defines scope and deliverables; the schedule defines timing and sequence.
- Where is WBS useful?
Shutdowns, turnarounds, projects, overhauls, and complex multi-discipline work.