What is a CMMS?
CMMS stands for Computerized Maintenance Management System. It is a software application used to plan, record and manage maintenance activities digitally, with the goal of improving the reliability, availability and service life of plant and equipment.
A CMMS is indispensable in production and infrastructure environments where planned and corrective maintenance are essential.
🧰 What does a CMMS do?
A CMMS provides support for activities such as:
- Creating and assigning work orders (preventive and corrective)
- Logging and following up on faults
- Managing spare parts
- Maintaining maintenance history
- Scheduling inspections
- Measuring KPIs such as Mean Time To Repair (MTTR) and availability
🏭 CMMS in OT environments
In Operational Technology (OT), a CMMS is often integrated with systems such as:
- SCADA or MES to forward fault notifications automatically
- PLCs or field equipment via standard protocols (e.g. OPC UA)
- Asset management systems for synchronising installation data
🔄 Some CMMS solutions integrate closely with ERP systems, for example SAP PM or Maximo.
📊 Example: water authority
When a fault occurs at a pumping station:
- The SCADA system detects the failure and generates a notification
- The CMMS automatically receives a work order for an engineer
- The engineer is informed via a mobile app
- After repair, they record the work performed and parts used
- Everything is logged for analysis and reporting
🧾 Common CMMS systems
- Ultimo
- IBM Maximo
- SAP PM
- IFS Maintenix
- Infor EAM
- eMaint
📌 In summary
A CMMS is the digital heart of maintenance management in industrial and infrastructure environments. It improves the reliability of assets, reduces unplanned downtime and supports maintenance teams with data and insight.