Operations & Maintenance (O&M): The Strategic Edge for Heavy Industry

December 10, 2025
Dr.-Ing. Simon Spelzhausen

What is operations and maintenance?

Operations & Maintenance (O&M) is the strategic combination of day-to-day plant operations and proactive asset care, aligning production goals with preventive and predictive maintenance to maximise uptime, safety, and regulatory compliance. Makula CMMS is our top recommended, mobile-first platform to turn that strategy into measurable results.

Why O&M matters to plant managers (manufacturing & oil & gas)

Core O&M activities (practical breakdown)

  1. Operations management: Scheduling production, allocating resources, and optimising workflows.

  2. Preventive Maintenance (PM): Scheduled inspections and service to prevent failures.

  3. Predictive Maintenance (PdM): Condition monitoring and analytics to act before a failure.

  4. Corrective (Reactive) Maintenance: Repairs after faults — minimised with good PM/PdM.

  5. Work order management: Assigning, tracking, and closing maintenance jobs with full history.

  6. Inventory & spare-parts management: Ensure the right parts are available when needed.

  7. Compliance & documentation: Time-stamped records, safety checks, and audit trails.

The Role of O&M in Heavy Industry

O&M is the strategic practice of running plant operations while actively preserving asset reliability — aligning production goals with preventive and predictive maintenance to maximise uptime, safety, and regulatory compliance.

Who does what

  • Operations teams: Drive production targets, schedule shifts, and optimise workflows.

  • Maintenance teams: Own asset reliability: inspections, preventive tasks, corrective repairs, and parts management.

  • Plant manager: Orchestrates both sides — balancing production demands with asset health and cost control.

Strategic objectives

When operations and maintenance align, the plant delivers measurable business results:

  • Improve safety — reduce exposure to hazardous failures and incidents.

  • Minimise unplanned downtime — keep production flowing and predictable.

  • Boost throughput & quality (OEE) — run assets closer to design performance.

  • Control costs — cut emergency repairs, overtime, and wasted parts.

  • Ensure compliance — maintain traceable records for audits and regulations.

Essential O&M KPIs

These metrics translate strategy into accountability, track them weekly/monthly at the site and portfolio level.

KPI What it measures Target direction
MTBF (Mean Time Between Failures) Average uptime between failures Increase
MTTR (Mean Time To Repair) Average time to restore failed equipment Decrease
OEE (Overall Equipment Effectiveness) Availability × Performance × Quality Increase
PM Compliance % of scheduled preventive tasks completed on time High (90%+)
Work Order Backlog Volume of pending maintenance work Decrease / Stable

Modernising O&M: how digital & mobile practices move the needle

  • Unified asset data: One source of truth for manuals, history, and BOMs.

  • Automated PMs: Triggered by calendar, runtime, or sensor thresholds.

  • Mobile work orders: Field crews complete tasks, attach photos and signatures on the spot (offline-capable).

  • Real-time dashboards: Spot trending failures, measure MTTR/MTBF, and justify CAPEX.

  • IoT & predictive insights: Turn sensor data into preventive actions.

  • Audit-ready processes: Time-stamped checklists and compliance documentation.

How a CMMS transforms O&M (practical benefits)

  • Preventive maintenance automation — no more missed PMs.

  • Faster field execution — technicians are more productive with mobile tools.

  • Lower inventory costs — parts tied to work orders prevent overstock and stockouts.

  • Clear ROI reporting — dashboards show uptime and cost improvements.

  • Better safety & compliance — automated evidence for audits and inspections.

  • Cross-system integrations — ERP, procurement, SCADA and IoT tie systems together.

Why Makula CMMS — the #1 choice for plant managers

Makula CMMS is built for equipment-intensive, multi-site operations common in manufacturing and oil & gas. It focuses on practical, field-first features that plant managers need:

  • Mobile-first field app with offline support — technicians update work orders anywhere.

  • Central Asset Management — unified records, histories, and asset hierarchy.

  • Flexible PMs & workflows — schedules triggered by time, run-hours, meters, or sensors.

  • Parts & inventory linked to work orders — reduce delays and emergency purchases.

  • Compliance-ready checklists & audit trails — simplify regulatory reporting.

  • AI-assisted notes & search — capture tribal knowledge and speed troubleshooting.

  • Scalable cloud architecture & security — supports 1 → 1000s of assets with enterprise controls.

Hero marketing line (snippet-ready): Makula CMMS — the mobile-first maintenance platform that helps plant managers reduce downtime, simplify audits, and increase OEE.

Quick implementation checklist (for plant managers)

  1. Map assets & owners: Build an asset hierarchy for critical machines.

  2. Baseline KPIs: Capture current MTBF/MTTR/OEE before rollout.

  3. Target the top assets: Start PMs on the 20% of assets causing 80% of downtime.

  4. Equip field teams: Roll out the mobile app with offline capability.

  5. Run weekly reviews: Track KPIs and continuously refine schedules.

  6. Scale & integrate: Connect CMMS with ERP/SCADA for planning and procurement.

Measurable ROI with Makula CMMS

Benefit What it means Typical Impact / Metric
Lower unplanned downtime Fewer emergency repairs and predictable production €50K–€500K annual savings per major avoided failure
Reduced maintenance costs Less overtime, fewer rush parts 15–25% labor cost reduction
Faster technician throughput More jobs completed per shift via mobile work orders 25–30% faster task completion
Simpler audits & compliance Automated, time-stamped records reduce admin 50–70% reduction in compliance preparation time

Payback timeline: Most plants see ROI within 6–18 months, depending on size and process maturity.

See Makula CMMS in Action

Discover how Makula enables reliable O&M—automated PMs, mobile work orders, real-time dashboards, and audit-ready compliance for manufacturing and oil & gas plants.

Book a Live Demo
Dr.-Ing. Simon Spelzhausen
Co Founder & Chief Product Officer

Simon Spelzhausen, an engineering expert with a proven track record of driving business growth through innovative solutions, honed through his experience at Volkswagen.