Maintenance Dictionary
A handy glossary of everyday terminology used in the maintenance industry, dedicated to maintenance professionals.
A B C D E F G H I J K L M N O P Q R S T U V W Y Z
Click on a letter to navigate to a group of words.
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Equipment failure analysis
Equipment failure analysis is the process of thoroughly investigating the causes of machine and equipment failures, with the goal of identifying and eliminating symptoms and preventing their recurrence. Why is it so important? It’s worth taking a look at the statistics. First and foremost, it’s worth emphasizing that equipment failures account for up to 80% of unplanned production downtime (source: TWI Institute ). Therefore, analysis is crucial in every plant. Using methods such as FMEA, cause and effect diagrams (Ishikawa diagrams), or 5W (5 Whys) can reduce downtime and lower maintenance costs by as much as 12-18% (source: Dynaway ).
Root cause analysis (RCA)
Root Cause Analysis (RCA) is a methodical and systematic approach that allows you to get to the root of technical or process problems rather than just addressing their symptoms. It utilizes tools such as the Ishikawa diagram, the 5 Whys method, and FMEA. Performing RCA can reduce unplanned downtime by up to 40%, lower maintenance costs by 25%, and improve OEE by 10% (source: FourJaw ). This allows organizations to achieve greater reliability and eliminate recurring failures.
Failure mode and effects analysis (FMEA)
What is Failure Mode and Effects Analysis (FMEA)? It’s a systematic process for detecting potential machine failures and assessing their consequences. FMEA can reduce defect rates from 2.41% to 1.13% in the textile industry ( MDPI ), reduce downtime by 14.2% ( ResearchGate ), and reduce production issues by up to 90% in new prototypes ( Accento Reliability ). This allows plants to achieve higher productivity, better quality, and lower machine maintenance costs.
Design Failure Mode and Effects Analysis (DFMEA)
Design Failure Mode and Effects Analysis (DFMEA) is a tool that helps detect potential errors during product development and assess their consequences. DFMEA is based on the analysis of the severity, probability, and detectability of each failure mode. For example, in hybrid engine design, DFMEA has been used to reduce the risk of failure by as much as 32% (source: VTechWorks ). In the industry, an average of 35% of products require rework, and the costs of poor quality can reach 20% of revenue (source: Fat Finger ). DFMEA shortens implementation time and improves reliability.
Downtime analysis
Downtime analysis is the process of systematically collecting and classifying data on machine downtime and identifying the causes of production disruptions. On average, plants lose 5–20% of their annual productivity due to unplanned downtime (source: TWI Institute ). The average manufacturer experiences as much as 800 hours of downtime per year—over 15 hours per week and costing the industry as much as $50 billion annually (source: plastikmedia.co.uk ). Analysis can help implement actions to reduce these losses.
Autonomous maintenance
Autonomous maintenance is a pillar of the maintenance strategy, where operators perform daily inspections, minor repairs, and machine cleaning themselves. This allows for faster fault detection and reduced maintenance costs. In one company, implementing autonomous maintenance increased OEE from 65.8% to 80.4%, and unplanned breakdowns decreased by 60% (source: ResearchGate ). A meta-analysis shows that full TPM with autonomy reduces downtime by 50–80% (source: Number Analytics ). Such statistics confirm the important role of autonomous maintenance.
Automation
An Automation Maintenance Engineer is a specialist in PLCs, HMI panels, and SCADA systems. Their primary responsibility is to analyze programs and machine operation to quickly identify the cause of failures. How much do automation engineers earn? The median salary is currently PLN 9,300 gross. Half of automation engineers earn between PLN 7,750 and PLN 11,330 (source: National Salary Survey ). Implemented automation solutions can reduce unplanned downtime by as much as 30–50% (source: Automation.com ). This, in turn, translates into greater availability and lower service costs.
Malfunction
A breakdown is the sudden start-up of a machine or device, preventing its continued operation. It contributes to as much as 80% of unplanned downtime in a plant (source: Spindle ). On average, each manufacturer loses approximately 800 hours per year due to downtime, generating losses of hundreds of millions of dollars annually (sources: Forbes , pingdom.com ). Statistics from Poland indicate that up to half of the responsibility for availability losses is attributed to improper maintenance organization (source: Inżynieria i Utrzyma Ruchu ). This data demonstrates the importance of proper maintenance planning.
Failure rate
Failure rate is a measure of the frequency of failures in a machine park, most often expressed as the number of failures per 1,000 operating hours, or the Annualized Failure Rate (AFR). In practice, manufacturing and construction equipment experiences an average of 3.5 failures per 1,000 hours (source: Home ), and the annualized failure rate is approximately 5% (source: Zoidii ). In Poland, some machines fail after just 40 hours of use (source: WSB-NLU ). Monitoring failure rate, however, allows us to improve these indicators, optimize downtime, and plan maintenance.
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Health and Safety in Maintenance
Occupational health and safety in the building industry is a set of standards, procedures, and legal obligations that work together to ensure the safe work of technicians. Pursuant to Article 207 of the Labor Code and the Ministry of Labor and Social Policy regulation , service or repairs must always be preceded by a risk assessment. Employees must be equipped with appropriate protective equipment. Training is also crucial. Statistics show why this is so important. In 2024, 67,000 accidents at work were reported (a rate of 4.80 per 1,000), including 2,000 fatalities (source: Central Statistical Office ). Systematic training and OHS audits help reduce the number of such incidents.
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Downtime
Downtime is the period when a machine or production line is not operational due to a breakdown or maintenance. A single unplanned downtime can last from a few minutes to several hours. Losses can amount to as much as $9,000 per minute (source: pingdom.com ). The average downtime in the manufacturing industry is approximately 1.5 hours per month per machine (source: MaxGrip ). To assess a factory’s resilience to faults, downtime can be used to determine, for example, its percentage of planned work.
Unplanned downtime
Unplanned machine downtime is the unexpected shutdown of a machine or production line, caused by equipment failure, operational error, or lack of preventive measures. On average, a plant loses 27 hours of work per month due to such events (source: Siemens ). This can mean costs of thousands of dollars per minute of downtime (source: pingdom.com ). Metrics such as MTBF and MTTR allow for measuring the frequency of failures and repair time. Therefore, it is worth implementing best practices in this area, including implementing a CMMS. Using them, unplanned downtime can be effectively kept below a specified threshold of planned operating time.
CMMS (Computerized Maintenance Management System)
CMMS ( Computerized Maintenance Management System ) is a digital tool supporting maintenance: from logging emergency orders, through scheduling preventive maintenance, to managing parts inventory. With CMMS, companies reduce unplanned downtime by an average of 20% (source: TeroTAM ). This has a real impact on financial results – return on investment can range from 25% to as much as 400% (source: MicroMain ). In Poland, according to research, implementing CMMS shortens service response times by as much as 40% (source: Polski Przemysł ).
Total Production Maintenance (TPM)
Total Productive Maintenance (TPM ) is a comprehensive approach to maintenance. The premise is simple: every employee should contribute to improving machine performance. What are the goals? Primarily, it’s about maximizing OEE, or the effective equipment utilization rate. The average OEE in industry is around 60%, and in the most efficient plants, it’s around 85% (source: Lean Production ). Implementing TPM typically increases OEE by 6% within the first few months (source: ScienceDirect ).
Downtime
Machine downtime encompasses the period during which a device is offline. It is measured from the moment a failure is reported or scheduled maintenance begins until the equipment is restarted (source: Yadda ). It is crucial for calculating OEE, MTTR, and MTBF (source: DSR ). As a general rule, minimizing downtime, especially unplanned downtime, is a top priority in maintenance. This can be achieved, among other things, by implementing a CMMS system, which streamlines maintenance management.
Digital twin
A digital twin is a virtual replica of a physical object or process. Its purpose is to reflect its behavior in real time, using sensor data and mathematical models. It enables failure simulation and service prediction, which reduces downtime. As many as 29% of manufacturing companies have implemented digital twins, and another 63% plan to implement them (source: B2B Automation ). The global digital twin market reached $17.73 billion in 2024 and is expected to grow to $259 billion by 2023 (source: ERP-View ).
Cycle
A maintenance cycle is a defined sequence of maintenance activities – from fault identification, through planning and execution, to analysis of results. It includes, among other things, daily inspections, weekly inspections, and monthly checks. It’s worth noting that effective cycle management reduces downtime. Factories lose an average of 25 hours of production per month due to unplanned downtime (source: WorkTrek ). The PN-EN 13306 standard defines a cycle as a set of activities in a facility’s lifecycle (source: MaintMaster ). A CMMS system allows for shorter cycles and better management.
Cyclic counting (inventory)
Cycle counting is a planned inventory of selected inventory items at a predetermined frequency. It can occur, for example, daily, weekly, monthly, or quarterly. This approach eliminates the need for mass annual counts while maintaining very high inventory accuracy (source: Cadre Technologies ). Cycle counting is often determined using the ABC method, which is based on dividing inventory into groups A, B, and C, in decreasing order of frequency (source: ASCM ).
Asset Lifecycle
The asset lifecycle encompasses successive phases – from planning and procurement, through commissioning and operation, to retirement or disposal. In practice, up to 80–90% of an asset’s lifespan falls in the middle stage (“operate and maintain”). This stems from the fact that it accounts for the majority of costs – from 20% to 60% (sources: Brightly , McKinsey ). Effective lifecycle management is crucial, as it significantly reduces the risk of failure and optimizes various plant performance metrics.
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Dashboard TV – Information board
A maintenance dashboard is a large (usually over 50″) screen mounted on the shop floor that displays key metrics (e.g., OEE, failure rate, machine uptime) in real time. Frequent refreshes—e.g., every 5–10 seconds—allow the team to respond to irregularities more quickly. This translates to a reduction in downtime by up to 20% and a 25% increase in productivity (source: L Squared ). As many as 93% of manufacturers worldwide have the infrastructure for such displays. Dashboard data can come from, for example, a CMMS system.
Diagnostics
Diagnostics is the process of detecting and determining the causes of faults in machines or systems. Various tools are used for this purpose, from vibration to thermography to oil analysis. Modern predictive techniques can reduce unplanned downtime by as much as 35–50% (source: Nucleus Research ). As many as 51% of facilities combine diagnostics with preventive maintenance, improving equipment availability by an average of 9%. A properly selected CMMS system should be the foundation of effective diagnostics.
Condition-based maintenance
Condition-based maintenance involves performing maintenance only when the actual condition of the machine requires it. This approach is implemented by analyzing readings from sensors, such as vibration, temperature, and oil. This reduces unplanned downtime by as much as 30–50% (source: ResearchGate ). Maintenance costs are also reduced by 18–25% (source: IIoT World ). A growing number of plants in Poland are combining CBM with CMMS systems, enabling effective monitoring of equipment and its performance in real time.
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Flexible maintenance
Flexible maintenance dynamically adjusts the schedule and scope of maintenance work in response to the actual condition of machines and current production needs. This approach utilizes sensor data and CMMS algorithms, among other things. This reduces downtime by an average of 17.8% (source: LinkedIn ). Maintenance costs are also reduced by 8–12% compared to a preventive approach (source: Advanced Technology Services ). Flexibility in maintenance allows for better response to faults and more efficient repair.
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Risk identification
Risk identification is the systematic detection and description of potential threats to machinery or production processes. What does this look like? In practice, tools such as risk matrix, FMEA, and fault tree analysis are used to clearly determine the probability and consequences of events. As many as 76% of companies already use ERM programs, but only 33% have fully integrated risk management processes (sources: Procurement Tactics , Poole ). Early detection can eliminate as much as 70–75% of potential failures.
Feedback
Feedback is the systematic collection and sharing of feedback from operators, technicians, and other employees. This information includes machine condition, repair progress, and the effectiveness of maintenance activities. It is the foundation of efficient maintenance communication. Regular reports and discussions allow for faster detection of recurring faults and streamlined procedures. This, in turn, translates into more efficient maintenance operations. This results in a reduction in mean repair time by up to 15%.
Maintenance engineer
A maintenance engineer is a specialist who designs and oversees maintenance strategies for machinery. Their responsibilities also include analyzing failure modes and optimizing production processes. Additionally, a maintenance engineer may coordinate teams of technicians, plan inspections, and implement procedures. In Poland, the median salary for this role is PLN 5,930 for junior specialists and PLN 9,520 for senior specialists (data from 2025 – source: No Fluff Jobs ). They play a key role in implementing maintenance processes within the company.
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QR Code and Barcode
Barcodes and QR codes are a quick way to identify equipment or inventory. Barcodes streamline picking, reducing errors by up to 67% and speeding up inventory counts by 75% (source: Finale Inventory ). QR codes contain even more information – up to 4,296 alphanumeric characters. This allows you to read service history, manuals, or technical documents with a single scan (source: QRmaint ). In CMMS systems, these codes speed up order fulfillment and minimize production downtime.
Error code
An error code is a unique string of characters or a number assigned to a specific fault . Using codes speeds up diagnosis and repair. Standard codes reduce average repair time by up to 20%. Systematic code recording reduces unplanned downtime by up to 40% annually (source: Atlassian ). In CMMS systems, error codes are the basis for the automatic generation of service orders. We also use them in QRmaint to ensure efficient and transparent handling of repairs and other maintenance work.
Configuration
A configuration is a set of components , parts, and settings necessary to build and run a machine. It can consist of dozens, hundreds, or even thousands of items. For example, in the automotive sector, a typical car contains approximately 30,000 components (source: Choong Ngai ). In maintenance, configuration can be tracked with a CMMS system. As many as 59% of plants use such software to accurately record all versions and variants of equipment. The configuration is the primary source of information about a given machine.
Maintenance culture
A maintenance culture is a set of values and behaviors within a company that defines its approach to maintenance and repair. Currently, only 34% of employees in manufacturing plants feel engaged in maintenance activities. It’s worth noting that engaged technicians are 70% more productive and 78% safer (source: Alphanova ). Building a proactive culture has a real impact on the efficiency of maintenance operations. Above all, it’s an effective way to minimize the risk of failures and improve operational efficiency indicators.
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Checklists
Checklists are formalized forms that list tasks a technician must complete before closing a job. They facilitate both preventative and reactive maintenance. A significant benefit of checklists is consistency and a complete audit trail. Studies show that using a checklist reduces the error rate to 1% (from 5% for procedures alone). Standards recommend that planned maintenance constitute a minimum of 80% of all maintenance activities (source: Reliable Plant ).
Applications Parts List (APL)
A parts and tool list (APL) is a compilation of all spare parts and tools needed to complete a specific maintenance order. The APL acts as a ready-made recipe. Each component is specified, minimizing search time and the risk of shortages. According to a PWC report, APL standardization reduces unplanned downtime by up to 50%, while also reducing inventory by 20–25% (source: Number Analytics ).
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Asset Mapping
Asset mapping is a visual plan of a facility. It can be used to mark machines, equipment, and service points. This allows technicians to immediately know where to find items like pumps, valves, and control panels. Studies show that companies that use such maps in their CMMS systems reduce unplanned downtime by 28% and reduce parts inventories by up to 25%.
Condition monitoring
Condition monitoring is the continuous monitoring of machine parameters such as vibration, temperature, and pressure. The goal is to detect alarming deviations before failure occurs. Proactive alerts reduce unplanned downtime by as much as 30–50% (source: Number Analytics ). Maintenance costs are reduced by 14–30% (source: Danfoss ). Implementation in a CMMS also enables automated reporting and maintenance scheduling.
MTBF Indicator (Mean Time Between Failures)
MTBF (Mean Time Between Failures) is the average operating time of a device between failures. It is calculated by dividing the total operating time (in hours) by the number of failures (source: IBM ). A higher MTBF indicates greater equipment reliability. In industry, values above 10,000 hours are often aimed for. This reduces the risk of unplanned downtime by up to 25% (sources: MaxGrip , Wikipedia ). To effectively reduce MTBF, it’s worth investing in a robust CMMS that will facilitate machine maintenance management.
MTTR (Mean Time To Repair) Indicator
MTTR (Mean Time to Repair) is the average time required to repair a fault and restore a device to full operational condition. It is calculated by dividing the total repair hours by the number of incidents (source: IBM ). Many manufacturing plants strive for an MTTR of less than 5 hours. This can reduce downtime by approximately 25%. Integrating MTTR data into a CMMS facilitates the generation of preventive maintenance tasks. This is a crucial metric that informs the effectiveness of maintenance activities.
MTTF (Mean Time to Failure) Indicator
MTTF (Mean Time to Failure) is a metric that measures the average operating time of an asset before failure. Importantly, it applies to non-repairable assets, such as light bulbs and bearings. It is calculated as the sum of operating hours divided by the number of failed units (source: Automatyka B2B ). A longer MTTF means fewer replacements and lower operating costs. A higher MTTF value, on the other hand, translates to increased expenses and potential production disruptions. To optimize MTTF, it’s worth implementing a CMMS system.
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Asset Reliability
Asset reliability is the ability of equipment to continuously perform its function without unexpected interruptions. Simply put, it’s about ensuring the longest possible period of failure-free operation. The average availability of process equipment across the entire industrial market currently stands at just 67% of operating hours (source: Milliken ). However, this figure can be significantly improved. Industry leaders achieve values of 99% availability (source: Wikipedia ). Higher reliability is worthwhile, as it translates into lower costs and higher OEE.
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Spare parts management
Spare parts management is the process of planning, purchasing, storing, and distributing components necessary for rapid repair. A proper approach to this issue can reduce resource consumption. Efficient management ensures the availability of 95–99% of the most frequently used parts, while maintaining inventory value at 1.5% of the asset’s replacement value (RAV). A turnover rate (e.g., 3 turnovers per year) can also reduce storage costs and the risk of obsolescence (source: LinkedIn ).
OEE (Overall Equipment Effectiveness)
Overall Equipment Effectiveness (OEE) is a percentage measure of overall machine efficiency. It integrates three key dimensions: availability, productivity, and quality of work. The average OEE value in industry is 50–60% (source: IoT Industries ). A level above 85% is considered exemplary (source: Lean Production ). Why is OEE important? It’s a metric with a real impact on plant efficiency. Systematic monitoring can reduce downtime by up to 20% and improve productivity by 15% within a few months (source: Mingo Smart Factory ).
Process optimization
Process optimization is a set of activities focused on analyzing and streamlining the various stages of production or maintenance. It encompasses all tasks aimed at speeding up work, achieving savings, or reducing errors. Companies typically reduce operating costs by 25–30% by simplifying workflows (source: SixSigma ). Simultaneously, productivity can increase by as much as 30–40% by eliminating unnecessary steps and better resource planning (source: BCG Global ).
Asset Optimization
Asset optimization (AOP) is the process of maximizing the value and performance of a company’s assets. It’s achieved by analyzing key metrics and implementing maintenance strategies. What results can you expect? According to Deloitte research, optimization reduces maintenance planning time by 20–50%. Equipment availability increases by 10–20%, and maintenance costs decrease by 5–10% (source: Dummies ). Such strategies extend equipment life and reduce the risk of failure, which impacts the entire plant’s operations.
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Maintenance planning
Maintenance planning is a key stage in machinery management. Tasks in this area primarily include defining a schedule for maintenance and repair work. A precise plan helps minimize downtime. A typical plant experiences an average of 20 incidents per month, and for 25% of operations, an unplanned failure results in losses exceeding PLN 100,000 per month (source: ZUT Projekt ). Optimal utilization of resources and spare parts can avoid the loss of up to 27 hours of production per month (source: Siemens ).
Emergency plan
A contingency plan is a set of alternative procedures and resources implemented when standard operations fail. To prepare an appropriate contingency plan, you need to start with the recovery time objective (RTO). This allows you to ensure the maximum allowable downtime (source: Sebitu). It’s a good way to manage unplanned outages, which can generate significant costs. In Europe, as many as 90% of companies cite emergency maintenance as a key challenge (source: Infraspeak Blog).
Prevention
Prevention encompasses all preventative measures to prevent breakdowns . It includes, for example, scheduled maintenance, parts replacement, and technical condition monitoring. As many as 80% of industrial plants implement preventive maintenance. As a result, downtime is reduced by an average of 44% and machine lifespan is increased by 20%. Such methods can also reduce repair costs by approximately 12% (source: Infraspeak Blog ). With CMMS QRmaint, you can effectively implement such a strategy in your Polish plant to minimize the risk of sudden downtime and ensure production continuity.
Productivity analysis
Productivity analysis is a way to determine the efficiency of production and maintenance resources. One key factor is the time technicians spend on the machine. On average, this is 25–35% per day (source: Reliable Plant ). Another important metric is OEE, which typically ranges from 55–60% (source: Evocon ). Typically, only 25% of operating time is dedicated to clean maintenance. Through analysis, results in each of these metrics can be significantly improved.
Preventive Maintenance
Preventive maintenance is an approach to maintenance based on regular, scheduled inspections and replacing parts before a failure occurs. In Poland, as many as 88% of industrial plants employ this strategy. Only 52% use a CMMS system, which allows for better coordination of activities (source: Inżynieria i Utrzymania Ruchu ). However, it’s worth noting that implementing such solutions allows for significantly better management of the maintenance department. It’s also an effective option for reducing downtime.
Predictive Maintenance
Predictive maintenance (PdM) is an approach to maintenance based on predicting faults and failures. Service decisions are driven by sensor data and software-based analysis. Currently, 30% of facilities worldwide use PdM. Implementing this method can reduce failures by up to 50% (source: IoT Analytics ). According to a McKinsey report, companies can also expect savings of 10 to 40% on maintenance costs.
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Augmented Reality for Maintenance
Augmented reality (AR) for maintenance includes, among other things, superimposing service manuals, diagnostic data, and diagrams on camera images in real time. This provides significant support for technicians. This allows maintenance staff to see, for example, component temperatures and repair history without having to search through documents. In 2024, global investment in AR, VR, and training reached $4.1 billion. However, in Poland, only a small percentage of employees are familiar with the possibilities of AR in maintenance (source: DlaProdukcji ).
Market availability of spare parts
Market availability of spare parts is an indicator that determines how quickly and in what quantity replacement parts can be obtained for a machine. What does availability look like in the industry? On average, only 15–25% of key parts are immediately available (source: SpareTech ). This poses a significant threat to production. It’s important to remember that any delay in delivery could potentially mean extended downtime. Another risk is the occurrence of more serious damage. Therefore, it’s worth monitoring availability and, if possible, ordering the necessary parts in advance.
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Cost estimation
Cost estimation is the forecasting of expenses for labor , materials, external services, energy, and other resources needed for maintenance. A typical industrial facility allocates 8–12% of its total operating costs to maintenance. Nearly half of these facilities strive to stay within 10% of their budget (source: Engineering and Maintenance ). Accurate estimates help avoid shortfalls and reduce downtime (source: Infraspeak ). CMMS features, which allow for better cost estimation and control, provide key support in this area.
Maintenance strategy
A maintenance strategy is a long-term plan for managing the operation and service of machinery. It is based on three pillars: preventive, predictive, and reactive. Preventive maintenance typically accounts for 4.5–7.5% of annual operating costs. However, machine analysis alone can reduce costs by 18–25% and reduce unplanned downtime. It’s also worthwhile to implement a CMMS system, which will further reduce failure rates.
SWS (Service Support Systems)
Maintenance Support Systems (SWS) are tools that facilitate maintenance management. Their functions may include maintenance scheduling, measurement data collection, and failure analysis. CMMS is one example of an SWS. In Europe, the CMMS market reached $342 million in 2024 (source: Verified Market Research ). However, the characteristics of the CMMS system are also important – for example, only 19% of Polish companies use IoT solutions in machine maintenance (source: Eurostat ).
Asset Management Standards (ISO 55000)
ISO asset management standards are a set of guidelines for organizations. What can you find within them? They encompass principles of resource planning and efficiency. What standards are distinguished? Several important documents fall into this category – particularly ISO 55001 and 55002. The former defines the requirements for an asset management system. ISO 55002, on the other hand, explains how to implement them (source: ISO ). Globally, in 2023, over 11,000 ISO 55001 certificates were issued, including approximately 120 in Poland (source: ISO Survey ). The information contained therein provides an important list of requirements for the proper use of resources.
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Asset Tag
An asset tag is a unique code used to uniquely identify almost any item. It can be a sticker with a barcode, QR code, or RFID tag. It is designed to be permanently attached to equipment or devices. Asset tags primarily support faster inventory counts and automatic inspection recording, making them significant in the context of maintenance. The global asset tag market has already reached $2.4 billion, with projected growth of approximately 6% annually (source: USD Analytics ).
TPM (Total Productive Maintenance)
Total Productive Maintenance (TPM ) is a comprehensive approach to maintenance. The fundamental premise is the involvement of all employees in maintenance processes – from operators to managers. Thanks to TPM, companies achieve 15–25% increase in equipment efficiency (source: EPA ) and increase their production capacity by over 10%. In Poland, as many as 70% of industrial plants consider TPM implementation a key element of their maintenance strategy.
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Maintenance of common areas
Maintaining common areas is a cost shared between the owner and tenants of a commercial space. This could be an office building, shopping mall, or logistics center. What does CAM cover? It covers all expenses related to servicing and maintenance of the space. This includes cleaning, lighting, and security. How much does CAM cost? For example, in Warsaw, it’s PLN 18–25/m² per month (source: KGPP ). Between 2019 and 2024, CAM budgets increased globally by 45% (source: Cushman & Wakefield ).
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Asset Utilization
Asset Utilization (AUM) is a measure of actual equipment utilization. It’s a percentage of the time a device or machine is actually in use, relative to its total available operating time. What does this look like in practice? For example, a machine that operates 6,000 hours per year, out of a total of 8,760 hours per calendar year, has a utilization rate of 68.5% (source: Processing Magazine ). In Polish industry, the average capacity utilization level is 77.6% as of April 2025 (source: Central Statistical Office ).
Operational efficiency
Operational efficiency is a measure of the effectiveness of resource utilization for production purposes. This includes human resources, machinery, and materials. Efficiency is calculated as the ratio of operating costs to revenue (source: Advanced Tech , IBM ). Many company management decisions influence this parameter. For example, process optimization leads to an average cost reduction of 15–20% and a 20–30% improvement in working capital (source: Number Analytics ). In the context of maintenance, a CMMS system, for example, can improve efficiency.
OEE (Overall Equipment Effectiveness)
OEE (Overall Equipment Effectiveness) is a term that describes the overall effectiveness (efficiency) of equipment. It combines three elements: availability, performance, and quality. It is calculated as the product of the percentages of each of these indicators. The average OEE value worldwide is currently around 60%. The best facilities achieve over 85% (source: OEE ). What is the situation in Poland? Typical results are close to the global average – according to reports, the range is 55–65%. These results can be improved with the use of a CMMS.
Deterioration Rate
The Deterioration Rate (DRR) measures the rate of deterioration of an asset’s technical condition. Importantly, it applies to normal operation, meaning it excludes failures. The rate is calculated by dividing the number of failures by the total operating time. For example, 6 failures in 10,000 hours results in a value of 0.0006 (sources: Wikipedia, NIST). This value can be used to determine, among other things, the probability of failure occurring over a given period, such as a year. This, in turn, provides a starting point for optimizing maintenance.
Tool trolley in maintenance
A mobile tool cart for maintenance is a multi-compartment workstation on wheels. It typically has 6 to 8 drawers and a load capacity of 200–550 kg. Dimensions may vary depending on the use case. It weighs approximately 40–80 kg (source: Inżynieria i Utrzyma Ruchu ). It can be equipped with a lock to prevent drawers from sliding out, as well as a non-slip mat on the work surface. The design of such a cart makes it an indispensable way to conveniently transport tools around the plant.
Emergency stop switch in maintenance: E-stop
An emergency stop switch is a key element of the control circuit. It allows for immediate disconnection of power to the machine in an emergency. Guidelines for emergency stop switches are established in several documents, including the PN-EN ISO 13850 standard. According to this standard, a red mushroom-shaped button on a yellow background is used, with an actuation force of up to 125 N (source: Engineering Shield ). Once pressed, the mechanism blocks the restart until manually reset. It is also important to position the switch at a height that provides convenient access for operators.
Main switch in maintenance
A main switch is a manually operated isolator that completely cuts off the electrical power to a machine or installation. According to the PN-EN ISO 60204-1 standard, it must have one “I” (on) position and one “O” (off) position. Both positions must be clearly marked, and if it also serves a safety function, it must be a red button on a yellow background (source: Safety in Control Systems ). Its switching capacity must cover the current of the largest motor and the sum of the other loads. This typically means up to 50 kA at 400 V (source: ABB Library ).
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Document Management
Document management is the systematic control of the lifecycle of all company files and records. It encompasses tasks from document creation and storage, through archiving, to disposal. A proper approach to this issue helps maintain order within the organization, which translates into the efficiency of various areas of the company. This is particularly important in the context of monitoring repairs and maintenance tasks. In Poland, approximately 63% of companies use electronic document flow solutions (source: PARP ).
Asset management
Fixed asset management encompasses various activities related to managing a company’s fixed assets. This includes planning, acquisition, use, and retirement of assets. It is a crucial issue for every organization. Global assets under management (AuM) reached a record $128 trillion in 2024. This represents a 12% annual increase (source: PlanAdviser ). In Poland, investment fund companies managed assets worth $379.5 billion at the end of December 2024 (source: Analizy ). This represents an 18.5% increase. Fixed asset management is also important in the context of maintenance, where a CMMS system can be used to streamline this area.
Asset Performance Management (APM)
Asset performance management (APM) is the monitoring and analysis of asset utilization data. This applies to both historical and current data. Proper management helps reduce failures and improve machine availability. This is an increasingly important issue in industry, with the global APM market valued at nearly $25 billion (source: Grand View Research ). However, in Poland, only about 13% of companies have advanced infrastructure for collecting and transmitting machine condition data (source: DSpace ).
Production capacity
Production capacity is a measure of a plant’s maximum production efficiency. It can be defined as the maximum number of products that can be produced in a given time. Full resource utilization is assumed. It is calculated using the Holtzmann function P = f(T, M, S, R, I). Here, T denotes operating time, M represents machine efficiency, S represents tools, and R represents human resources. I represents other factors (source: MHP ). Theoretical production capacity can be expressed, for example, in units produced or as material quantity. It is a key indicator in maintenance.
Machine lifespan
A machine’s service life is the period during which it can be used as intended. This is the time before technical wear and tear reaches a limit. What is a typical service life? In industry, 20,000 operating hours (approximately 10 years for single-shift operation) is typically assumed. For two- or three-shift operation, this ranges from 40,000 to 60,000 hours (source: InterRisk ). Predictive maintenance can extend machine service life by as much as 20–40%.
Asset Reservation Requests
Resource reservation requests are a feature in CMMS that gives users the option to block machines, tools, or rooms for a specific period. This helps avoid conflicts in work planning and resource allocation. In the most efficient maintenance departments, as much as 85% of work is scheduled through reservation systems (source: Prometheus Group ). The reservation module can reduce unplanned downtime and increase overall maintenance department efficiency, providing a better environment for repairs and maintenance.
Work Order
A work order (WO) is a formal request for a maintenance task. It can cover a variety of activities, from repairs to inspections. Each WO defines the scope of work, equipment, priority, and deadline. Typically, approximately half of the WOs are planned (preventive) work. The other half are reactive, resulting from unplanned breakdowns (source: FieldCircle ). Modern plants are increasingly using CMMS systems to improve this statistic. Mobile versions are a particularly effective option, allowing work orders to be issued, tracked, and completed directly at the machine.
