Explainer7 min read
CAFM, CMMS, IWMS and EAM: what each term means and which you need
Facilities software is sold under four overlapping acronyms. Vendors use them loosely, and in the Gulf and the UK one of them, CAFM, is often used for all of it. Here is what each term was coined to mean, where they overlap, and how to work out what your team actually needs.
By the FM360AI team
The short version
| Term | Stands for | Centre of gravity | Typical buyer |
|---|---|---|---|
| CMMS | Computerised maintenance management system | Work orders, preventive maintenance, assets and spare parts | Maintenance managers |
| CAFM | Computer-aided facility management | The building and its services: helpdesk, maintenance, space, contractors | Facilities managers |
| IWMS | Integrated workplace management system | The whole property portfolio: leases, space, projects, sustainability, plus maintenance | Corporate real estate |
| EAM | Enterprise asset management | The full life of high-value assets, including finance and reliability engineering | Asset-intensive industries |
In practice the boundaries have blurred. Most products sold as CAFM include a CMMS. Most CMMS products have added a request portal. What still differs is depth: where the product started is usually where it is strongest.
CMMS: maintenance first
A CMMS exists to answer three questions: what needs maintaining, what work is due or outstanding, and what was done. Its core objects are assets, work orders, preventive maintenance schedules and parts. If your problem is that planned maintenance is not happening or that you cannot show a service history, this is the category that addresses it.
CAFM: the building and the people in it
CAFM grew out of drawings and space management, then absorbed helpdesk and maintenance. A CAFM system assumes that much of the work begins with an occupant reporting something, so it puts weight on request intake, service levels, contractors and soft services such as cleaning, alongside hard maintenance. In the Gulf, tenders for facilities software almost always ask for CAFM.
IWMS: the portfolio
An IWMS adds the real estate layer: lease administration, space planning and occupancy, capital projects and environmental reporting. It suits organisations that manage a large portfolio and want property, space and maintenance decisions in one model. It is a larger undertaking to implement and is more than most single-estate facilities teams need.
EAM: the asset over its whole life
EAM comes from heavy industry, utilities and transport. It follows an asset from specification and purchase through operation to disposal, with depreciation, reliability analysis and often condition monitoring. If an hour of downtime on one machine costs more than a year of software, you are in EAM territory.
How to choose
Start from the problem, not the acronym. Write down where work originates and what you cannot currently answer.
- If most work starts as a request from an occupant, you need strong intake, triage and service levels. Look at how requests actually arrive today, including messages and email.
- If most work is planned, you need scheduling, checklists and asset history to be excellent.
- If purchasing and budgets are a daily part of maintenance, check whether procurement is in the product or assumed to be elsewhere.
- If technicians will not use it on a phone, nothing else matters. Ask to see the technician's screen first.
- If your organisation works in Arabic, check the interface and the documents, not just the brochure.
Where FM360AI sits
FM360AI is closest to CAFM with a CMMS core. It covers request intake by WhatsApp, email and app, tickets and SLAs, preventive maintenance, assets, inventory, vendors and procurement, budgets and room booking. It does not cover lease management, space planning or reliability engineering, so it is not an IWMS or an EAM system.
A useful test for any shortlist: ask each vendor to show one request travelling from a message to a closed job with evidence, in the product, without slides.
