Maintenance Matters Focus on: CMMS 12 | Plant & Works Engineering www.pwemag.co.uk August/September 2026 The Computerised Maintenance Management System (CMMS) is frequently sold as a silver bullet for industrial operational headaches. Companies invest heavily in these platforms, hoping software alone will fix deeply ingrained reliability issues. Yet, no platform operates as a magic wand. A CMMS is an advanced instrument whose power hinges entirely on organisational discipline. In discussions with leaders, I compare a CMMS to an office filing cabinet, both are useless without clear structure, deliberate use, and diligent maintenance. To turn your CMMS into a genuine profit driver, treat it as a dynamic, living ecosystem that captures the true heartbeat of your operations. The bedrock of data integrity and asset hierarchy To construct a high-performing CMMS, organisations must begin with a rock-solid structural foundation. Rather than allowing data to decay, a best-practice system requires that all assets are recorded in exhaustive, granular detail. This includes capturing complete nameplate information and documenting exact physical locations on the plant floor. The same rigorous standards must apply to the Bill of Materials (BOM), where a planner must be able to find parts and vendors instantly. This is achieved by building BOMs with sub-assemblies to make complex component searches intuitive, and by clearly identifying stock versus non-stock items. When the CMMS is fully integrated into an Enterprise Asset Management (EAM) framework, it enables the creation of work orders directly against the asset, allowing for the requisitioning of parts and the capturing of all labour and material costs in one seamless flow. The foundation of any optimised CMMS is a well-defined asset hierarchy. A robust hierarchy allows for more accurate planning, better component control, and the allocation of maintenance costs to the correct equipment at a granular level. Further, it allows the condition and performance of equipment to be tracked with precision, aiding in failure tracking and downtime analysis. Once the hierarchy is established, the organisation must prioritise its assets, moving away from a one-size-fits-all maintenance approach and toward a strategy based on criticality (ranging from the most critical to run-to-fail). Importantly, this is not a task for the maintenance department alone. A multidisciplinary team of subject matter experts from operations, engineering, and administration must agree upon the criticality list, considering factors such as mission impact, safety, environmental risks, and spares lead times. Additionally, this list is not static as frequent reviews must be established to update criticality criteria as the plant evolves. A living document requires a guardian. Without written standards and clear rules for specific job positions, the integrity of a CMMS will inevitably decay. We must ask ourselves, who is the gatekeeper? Is it a Reliability Engineer or a dedicated CMMS coordinator? Without a designated authority, new personnel will often interact with the system based on their personal preferences, making unauthorised changes that erode the standardized structure and compromise long-term data integrity. Designing for reliability over accounting One of the primary reasons maintenance organizations struggle with CMMS optimisation is a fundamental misalignment during the implementation phase. All too often, these systems are designed primarily for accounting purposes, for example, tracking spend and labour for the finance department, rather than for maximum asset careand reliability. When a CMMS is built through the narrow lens of an accounting ledger, it fails to serve the maintenance team on the shop floor. In reality, the best-in-class CMMS serves as a one-stop shop for all the information a maintenance organisation needs to locate asset details quickly and efficiently, which directly correlates to superior asset reliability. For a CMMS to transcend its role as a digital file cabinet, it must be the primary tool for reviewing performance, ordering parts, investigating failures, and examining actual Turning your CMMS into a reliability and profit driver Terry Alexander, CMRP, REC, Senior Reliability Engineer at Life Cycle Engineering, explains why a CMMS is only as effective as the discipline behind it, and how robust data, asset hierarchy, governance and performance metrics can transform maintenance from a cost centre into a driver of reliability and profitability.
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