Glossary
Operations and asset management

What is CMMS and EAM?

Definition

A CMMS is the system of record for maintenance work orders, schedules and spare parts; an EAM extends that record across an asset's whole life, adding cost, procurement and capital planning.

Who runs which

Facility teams in hospitals, universities, airports, offices and retail estates typically run a CMMS. EAM suites are more common in utilities, transport, large public estates and heavy industry, where assets carry high capital value and link to finance and purchasing systems.

What the record measures

Maintenance performance is read from work order data: backlog and its age, the ratio of planned to reactive work, mean time to repair, mean time between failures, and closure notes per asset. These numbers are only as good as the trigger that opened each order and the check that closed it.

Measured evidence for each work order

A CMMS knows a job was closed, not whether the problem went away. Aqueduct supplies the measured side: an alert raised from a metric, the trend behind it, and its place in the site, floor, zone and device hierarchy, passed to the CMMS the team already uses. After the repair, the same signal returning to its normal range confirms the fix. Aqueduct does not schedule technicians or manage parts.

Questions

CMMS and EAM: common questions

A CMMS, or computerized maintenance management system, is software maintenance teams use to plan, assign and record work on equipment. It holds the asset list, preventive schedules, work order history and parts inventory. Aqueduct supplies measured alerts to the CMMS a team already runs, through asset observability.

A CMMS focuses on work orders and maintenance schedules. An EAM covers the whole asset life, including cost, procurement and renewal planning, usually across a large organization. Some vendors sell both as one suite, with the EAM tied to finance and purchasing systems.

Generally not. A CMMS records work, and detection needs live data from meters, sensors and control systems. Fault detection and diagnostics or condition monitoring fills that gap and raises the alert that becomes a work order.

No. Aqueduct detects issues and confirms fixes with measured data, while the CMMS remains the system of record for work orders, labor and parts. The two complement each other: one says what is wrong and whether it is fixed, the other organizes who does the work.

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