Maintenance Glossary Table of Contents

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Introduction: The following terms and definitions are from the area of Maintenance Management, Maintenance Storeroom Operations, Inventory Management and MRO Materials Management areas. Included in this Web version are definitions of selected terms used within the entire PRIDE-in-Maintenance.com site.

A

ABC Inventory Policy - A collection of prioritizing practices to give varied levels of attention to different classes of inventories. For example, Class A Items typically make up 15 to 25 percent of stock Items but 75 to 85 percent of Inventory Value. Class C items, in turn, might be 60 percent of the Stock Items but only 10 percent of the Inventory Value. Class B items would be somewhere in between these two.

ACE Team Benchmarking System (Also The ACE System) - A team-based process for using experienced Crafts People, Maintenance Supervisors and Maintenance Planners to develop a consensus on Maintenance repair times and work content/wrench time. It involves A Consensus of Experts (ACE’s) for first evaluating a job for improved methods, tools, special equipment and root cause elimination. Secondly, this process then develops a consensus on work content and then spread sheets for work content comparison (Slotting). The process provides a methodology for a Maintenance Planner to develop Reliable Planning Times for a wide range of jobs using a relative small number of Benchmark Jobs arranged on spreadsheets by Craft Areas.

ACE Team Process Certification - This is the TMEI stand alone course for certification in The ACE Team Process for Estimating.

Actuarial Analysis - Statistical analysis of Failure data to determine the Age-Reliability Characteristics of an Item .

Adjustments - Minor tune-up actions requiring only hand tools, no parts, and usually lasting less than a half hour.

Age-Reliability Characteristics - The patterns of Failure of a system or Component within it current

APL - See Applications Parts List.

Applications Parts List - A list of all parts required to perform a specific Maintenance activity. Typically set up as a standard list attached to a Standard Job for Routine Maintenance Tasks. Not to be confused with a Bill of Materials.

Apprentice - A Craftsperson in training, typically following a specifically defined technical training program while gaining hands on experience in a Craft Area to gain a specified number of hours experience.

Area Maintenance - A method for organizing Maintenance Operations in which the first-line Maintenance Leader is responsible for all Maintenance Crafts within a certain department, area or location within the facility or facility complex.

Asset Care - An alternative term for the Maintenance process. A kinder, gentler term but still pure maintenance and Physical Asset Management .

Assets - The physical resources of a business, such as plant equipment, Facilities, Building Systems, Fleets, or their parts and Component; unlike in the accounting definition, in Maintenance this is commonly taken to be any Items of Physical Plant or Equipment.

Asset List - A register of physical Assets (Equipment, Facilities, Building Systems, etc.) usually with information on manufacturer, vendor, Specifications, classification, costs, warranty, and tax status.

Asset Management - The systematic planning and control of a physical Inventory Value resource throughout its Economic Life ; the systematic planning and control of a physical resource throughout its Life . This may include the specification, design, and construction of the asset, its operation, Maintenance and Modification while in use, and its Disposal when no longer required.

Asset Number - A unique alphanumerical Identification of an asset list.

Asset List - The list that is used for asset management.

Asset Register - A list of all the Assets in a particular workplace, together with information about those Assets, such as manufacturer, vendor, make, model, Specifications etc.

Asset Utilization - The percentage of total time the equipment/asset is running.

Availability - The Probability that an asset will, when used under specified conditions, operate satisfactorily and effectively. Also, the percentage of time or number of occurrences for which an asset will operate properly when called upon; the proportion of total time that an Items of equipment is capable of performing its specified Functions, normally expressed as a percentage. It can be calculated by dividing the equipment Available Hours by the total number of hours in any given period.

Available Hours - The total number of hours that an Items of equipment is capable of performing its specified Functions. It is equal to the total hours in any given period, less the Downtime (DT) hours.

Average Life - How long, on average, a Component will last before it suffers a Failure. Commonly measured by Mean Time Between Failures (MTBF).

B

Backlog - Work Orders planned and prioritized, waiting scheduling and execution; Work which has not been completed by the “required by date”. The period for which each work order is overdue is defined as the difference between the current date and the “required by date”. All work for which no 'required by' date has been specified is generally included on the Backlog. Backlog is generally measured in "crew-weeks"; the total number of labor hours represented by the work on the Backlog, divided by the number of labor hours available to be worked in an average week by the work crew responsible for completing this work. As such, it is one of the common Key Performance Indicators (KPI) used in Maintenance.

Bar Code - An Identification method using symbols for encoding data using lines of varying thickness, designation alphanumeric characters.

Benchmarking - The process of comparing performance with other organizations, identifying comparatively high performance organizations, and learning what it is they do that allows them to achieve that high level of performance.

Benchmark Jobs - These are specific jobs analyzed by The ACE TEAM for a task listing, estimated time per task, tools required, skill levels, safety and permitting. Benchmark Jobs are then developed onto spreadsheets ( 2-3 Benchmark Jobs per time slot) for a specific craft area. Speadsheets in turn are used by planners for slotting/estimating of job work content. Therefore from a relative small number of Benchmark Jobs, a large number of jobs can estimated and within 95% accuracy with the ACE times ranges.

Bill of Materials (BOM) - List of Component and parts for an asset, usually structured in hierarchical layers from gross assemblies or major end Items to minor items Down to Component parts; a list of all the parts.

BOM - See Bill of Materials.

Breakdown - Failure to perform to a Functional Standard; a specific type of Failure where an Items of plant or equipment is unable to Function.

Built-in Test Equipment (BITE) - Diagnostic and Checkout devices integrated into equipment to assist operation, trouble shooting and service.

C

Calibrate - To verify the accuracy of equipment and assure performance within tolerance, usually by comparison to a reference standard that can be traced to a primary standard.

Call-out - To summon a tradesperson to the workplace during his normal non-working time so that he can perform a V activity (normally an Emergency Maintenance Task ).

CBM - See Condition Based Maintenance (CBM).

Central Maintenance - A method for organizing Maintenance Operations in which the Maintenance Leader is responsible for all V and all Craft Areas operating on call from a central location to support the entire operation.

Certified Project Manager - Now, more than ever, businesses around the world—large, small, and across virtually every industry—are seeking managers who can complete projects on time and on budget. Managers of all varieties will find that this graduate certificate provides valuable hands-on training that is immediately applicable to the workplace.

Change out - The removal of a Component or part and the replacement of it with a new or rebuilt one.

Condition Monitoring - The use of specialist equipment to measure the condition of equipment. Vibration Analysis, Oil Analysis

Conditional Probability - Conditional Probability is the probability of some event A, given the occurrence of some other event B. Conditional probability is written P(A|B), and is read "the probability of A, given B".

Conditional Probability of Failure - The Probability that an Item will fail during a particular age interval, given that it survives to enter that age.

Confidence - Degree of certainty that something will happen. For example, a low Confidence of replenishment means repair parts probably will not be readily available and is one reason that maintenance personnel retain excess parts in uncontrolled areas.

Configuration - The arrangement and contour of the physical and functional characteristics of systems, equipment, and related Items of Hardware or software; the shape of a thing at a given time. The specific parts used to construct a machine.

Consumables - Supplies such as fuel, lubricants, paper, printer ribbons, cleaning materials, and forms that are exhausted during use in operation and Maintenance .

Contingency - Alternate actions that can be taken if the main actions do not work.

Continuous Monitoring - Continuous Monitoring solutions help to reduce recurring manual compliance effort, chiefly through replacing manual controls with automated ones. Compliance and cost reduction aside, these solutions can also increase assurance of financial integrity.

Continuous Reliability Improvement (CRI) - A process developed and used by staff from The Maintenance Excellence Institute that goes beyond current reliability-centered maintenance (RCM) approaches to outline a continuous, integrated process for improving total reliability of the following resources:

• Equipment/Facility Resources (Asset Care /Management and Maximum Uptime via RCM Techniques)
• Craft and Operator Resources (Recognizing the most important resource: Crafts People and Equipment/Process Operators)
• Maintenance Repair Operations (MRO) Resources (Establishing Effective Materials Management Processes)
• Maintenance Information Resources (Effective Information Technology Applications for Maintenance)
• Maintenance Technical Knowledge/Craft Skills Base (Closing the Technical Knowledge Resource Gap)
• Synergistic Team Processes (Topping the Value-Added Resource of Effective Leadership-Driven Teams to Support Total Operations Success)

Contract Acceptance Sheet - A document that is completed by the appropriate Contract Supervisor and Contractor to indicate job completion and acceptance. It also forms part of the appraisal of the contractor’s performance.

Contracted Maintenance - Outsourcing your maintenance organizations functions to an established contractor, i.e. HVAC, Plumbing, Electrical contracting companies, etc.

Craft Availability - Percentage of time that craft labor is free to perform productive work during a scheduled working period.

Craft Areas - Areas of craft skills and specialty; mechancial, electrical, electronics etc.

Craft Service Quality (CSQ) - Another element affecting Overall Craft Effectiveness relates to the relative quality of the repair work. This element includes quality of the actual work, where certain jobs possibly require a call back to the initial repair thus requiring another trip to fix it right the second time. However, Craft Service Quality (CSQ) can be negatively impacted within a plant or facility complex due to no fault of the Craftsperson when hasty repairs, patch jobs or inferior repair parts/materials create the need for a call back.

Craft Skills Development - Each maintenance person needs to keep up to date with his or her industry and to develop their personal skills in their chosen area of expertise. If you are an electrician, you need to know the latest standards being used in the electrical industry so that you can apply them to your job in the Maintenance Department. The same rule applies to all Maintenance Professionals and the only way to stay current is to participate in and learn from a Craft Skills Development program.

Craft Utilization (CU) - The percentage of time that craft labor is engaged in productive work, hands-on during a scheduled working period. The actual wrench time as compared to total time paid. CU is one of the three key elements of Overall Craft Effectiveness (OCE). The other two elements of OCE are Craft Performance (CP) and Craft Services Quality (CSQ).OCE relates to measuring how effective we are in planning and scheduling craft resources so that these Assets are doing value-added, productive work (wrench time). Effective planning/scheduling within a proactive Maintenance process is one important key to increased wrench time and Craft Utilization (CU). It is also about having an effective storeroom with the right part, at the right place in time to do scheduled work with minimal non-productive time on the part of the Craftssperson or crew assigned to the job.

Crafts People - See Craftsperson.

Critical Asset Condition Assessment - Assessment of the status, either up or down, working or not working, of a critical piece of production or support equipment or asset.

Critical Asset Performance Facilitation - Provide audit of critical equipment and work cells to facilitate maximum capacity/throughput and continuous reliability improvement for critical, mission-essential assets. Develop a model “Quality Operations and Maintenance Guide” for the asset that provides complete operating and maintenance guidelines, procedures and asset documentation in multimedia format including digital video.

Critical Equipment - Items especially important to performance, capacity and throughput and more vital to the operation than non-Critical items.

Criticality - The priority rank of a Failure Mode based on some assessment criteria.

Critical Path Method (CPM) - A logical method of planning and control that analyzes events, the time required, and the interactions of the considered activities.

Critical Spare - Parts and materials that are not used often enough to meet detailed stock accounting criteria but are stocked as “Insurance Items ” because of their essentially or the Lead Time involved in procuring replacements; similar to safety stocks, except on low-use parts.

Crossdocking - Term for the functional capability of an Inventory management module to track high priority inbound orders into receiving, to initiate immediate delivery and to receive/process issue transactions with minimal manual effort. Crossdocking provides quick turnaround at receiving without putting Items into storage locations and then having to pick for issue later.

Cycle Count - An Inventory Accountability Strategy where counting and verification of stock Item quantities is done continuously based on a predetermined schedule and Frequency based on the ABC classification of the item. As opposed to an annual physical Inventory, Cycle Counting allows for continuous counting and reconciliation of Inventory discrepancies.

D

Dead Stocks - Items for which no Demand has occurred over a specific period of time.

E

Economic Life - The total length of time that an asset is expected to remain actively in service before it is expected that it would be cheaper to replace the equipment rather than continuing to maintain it. In practice, equipment is more often replaced for other reasons, including: because it no longer meets Operational Requirements for efficiency, product quality, comfort etc., or because newer equipment can provide the same quality and quantity of output more efficiently.

Economic Repair - A repair that will restore the Item to a sound condition at a cost less than the value of its Estimated Remaining Useful Life.

Effective CMMS System - In order for the CMMS to track the maintenance cost, including labour and parts history equipment records will need to be created in such a fashion that will identify all required information. The design will also need to be configured to allow for benchmarking, measuring uptime, conducting Root Cause Failure Analysis, and the potential for creating hierarchy relationships.

Emergency Maintenance (EM) - A condition requiring immediate corrective action for safety, Environmental , or economic Risk, caused by equipment Breakdown.

F

Facilities - Buildings (such as Manufacturing Plants or other Physical Locations) that are built, installed, or established to serve a particular purpose.

Facility Condition Assessment - A Physical Audit of the facility, the fixed support equipment inside and outside of a facility with the resulting report giving an estimated or expected life for the facility and the equipment.

Fail-safe - An Item is Fail-safe if, when the item itself incurs a Failure , that failure becomes apparent to the operating workforce in the normal course of events.

Failure Modes and Effects Analysis (FMEA) - A structured method of determining Equipment Functions, Functional Failures, assessing the causes of Failures and their Failure Effects . The first part of a Reliability Centered Maintenance (RCM) Analysis is a Failure Modes and Effects Analysis.

Failure Pattern - The relationship between the Conditional Probability of Failure of an Item, and its age. Failure Patterns are generally applied to Failure Modes. Research in the airline industry established that there are six distinct Failure Patterns. The type of Failure Patterns that applies to any given Failure Mode is of vital importance in determining the most appropriate equipment Maintenance Strategy. This fact is one of the key principles underlying Reliability Centered Maintenance (RCM).

FMEA - See Failure Modes and Effects Analysis.

FEMCA - See Failure Modes, Effects and Criticality Analysis.

Functional Maintenance Structure - A method for organizing the Maintenance Operation where the first-line Maintenance Leader is responsible for conduction a specific kind of Maintenance, for example, electrical maintenance, pump maintenance, HVAC maintenance, etc.

Functional Standard - Functional Standard - The combination of hardware , Computer Programs, Personnel, Facilities, Procedural Data, or a combination thereof; that an operation or system is designed to perform. Includes the definition of what we want an item of equipment or system to do, and the level of performance which the users of the equipment require when it does it.

G

Gambling With Maintenance - See Run To Failure

Gantt Chart - A bar chart format of scheduled activities showing the duration and sequencing of activities.

Go-line - Used in relation to mobile equipment. Equipment, which is available, but not being utilized is typically parked on the Go-line. This term is used interchangeably with Ready Line.

H

Hardware - A physical object or physical objects, as distinguished from capability or Functions. A generic term dealing with physical Items of equipment-tools instruments, Component, parts-as opposed to funds, personnel, services, programs, and plans, which are termed “Software.”

Hold for Disposition Stock - Defective material held at a stock location pending removal for Repair or for Scrap.

I

Identification - Means by which Items are named or numbered to indicate that they have a given set of characteristics. Identification may be in terms of name, part number, drawing number, code, stock number, or catalog number. Items may also be identified as part of an assembly, a piece of equipment, or a system.

Inventory Control - That phase or Function of logistics that includes management, cataloging, requirements, determination, procurement, Inspection, storage, distribution, overhaul, and Disposal of material. Managing the acquisition, receipt, storing and issuance of materials and Spare Parts; managing the investment efficiently of the Stores Inventory.

Inventory Turnover - Ratio of the value of materials and parts Issues annually to the value of materials and parts on-hand, expressed as percentage.

Inventory Value - The value of Items in Inventory which can be calculated several ways; average cost method, Last In-First Out (LIFO) and First In-First Out (FIFO) . All unlike FISH; first in still here??

Item of Supply - An article or material that is recurrently purchased, stocked, distributed, used and is identified by one distinctive set of numbers or letters throughout the organization concerned. It consists of any number of pieces or objects that can be treated as a unit.

J

Just-In-Time (JIT) - A buzzword term for proactive planning of many processes such as JIT Inventory service, JIT Maintenance services, etc.

JIT - See Just-In-Time (JIT) .

K

Keep Full - Term used for maintaining set levels of shop stock Inventory of Class C Items. (See also Shop Stock)

Key Performance Indicators (KPI) - A select number of key measures that enable performance against targets to be monitored.

KPI - See Key Performance Indicators.

L

Last In-First Out (LIFO) - Use newest Inventory next. LIFO accounting values each Item used at the cost of the last item added to Inventory. Contrasts with First In-First Out (FIFO) .

LSA - See Logistic Support Analysis (LSA).

M

Maintainability - The inherent characteristic of a design or installation that determines the ease, economy, safety, and accuracy with which Maintenance actions can be performed. In addition, the ability to restore a product to service or to perform Preventive Maintenance within required limits. The rapidity and ease with which Maintenance Operations can be performed to help prevent malfunctions or correct them if they occur, usually measures as Mean Time to Repair; the ease and speed with which any Maintenance activity can be carried out on an Item of equipment. Maintainability may be measured by Mean Time to Repair. It is a Function of equipment design, and Maintenance task design (including use of appropriate tools, jigs, work platforms etc.)

Maintainability Engineering - The application of applied scientific knowledge, methods, and management skills to the development of equipment, systems, projects, or operations that have the inherent ability of being effectively and efficiently maintained; the set of technical processes that apply Maintainability Theory to establish system maintainability Requirements, allocate these requirements down to system elements to predict and verify system maintainability performance.

Maintenance - The Function of keeping Items or equipment in, or restoring them to, serviceable condition. It includes Servicing, Test, Inspection, Adjustment/Alignment, Removal, Replacement, Reinstallation, Troubleshooting, Calibration, Condition Determination, Repair, Modification, Overhaul, Rebuilding and Reclamation. Maintenance includes both corrective and preventive activities. Any activity carried out to retain an item in, or restore it to, an acceptable condition for use or to meet its Functional Standard.

Maintenance as a Business - A philosophy and practice that views the process of Maintenance in terms of being Profit-Centered Maintenance and Customer-Centered Maintenance.

Maintenance Engineering - Developing concepts, criteria, and technical requirements for Maintenance during the conceptual and acquisition phases of a project. Providing policy guidance for Maintenance Activities, and exercising technical and management direction and review of Maintenance Programs. A Staff Function intended to ensure that Maintenance Techniques are effective, equipment is designed for Optimum Maintainability, that persistent and Chronic Problems are analyzed, and Corrective Actions or Modifications are made.

Maintenance Excellence Index (MEI) - An essential Component to The Maintenance Excellence Institute’s implementation of Profit-Centered Maintenance. It is a progressive approach to Performance Measurement within Maintenance Operations achieved by Integrating Multiple Metrics into a composite Total MEI Value. It includes the comparison of Current Performance to both the Performance Goal and Baseline Value for each metric selected. Ideally suited to measure progress toward Maintenance Excellence across multiple sites within an organization.

Maintenance Leader - The term used by The Maintenance Excellence Institute to denote the people that lead the Crafts on the process of Performing Maintenance and Improving Reliability. Titles include Maintenance Manager, Facilities Manager, Plant Engineer, Supervisor, Foreman etc.

Maintenance Repair Operations (MRO) - A term generally used as MRO Items referring to parts, materials, tools and Equipment Used in the Maintenance Process.

• Inspection - Is a Maintenance Requirement when the basic objective is to assure that a Requisite Condition or Quality exists. In order to inspect for the Desired Condition, it may be necessary to Remove the Item, to gain access by removing other Items, or to Disassemble partially the item for Inspection Purposes. In such cases, these associated actions necessary to accomplish the Required Inspection would be Specific Tasks.
• Troubleshooting - Is a Maintenance Operation that involves the Logical Process (series of tasks) that leads to Positive Identification , Location, and Isolation of the Cause of a Malfunction.
• Remove - Is a Maintenance Requirement when the basic objective is to separate the Item from the next higher assembly. This requirement is usually applied for a Configuration Change.
• Remove and Replace - This requirement constitutes the Removal of one Item and Replacement of it with another like item. Such action can result from a Failure or from a Scheduled Action.
• Remove and Reinstall - Is a maintenance requirement when an Item is Removed for any reason, and the same items Reinstalled.
• Adjustment/Alignment - Is a maintenance requirement when the primary cause of the maintenance action is to adjust or align, or to verify adjustment/alignment of specific equipment. Adjustment-Alignment accomplished subsequent to repair of a given Item is not considered a separate requirement and is included as a task in the repair requirement.
• Functional Test - Constitutes a system or subsystem Operational Checkout either as Condition Verification after the accomplishment of Corrective Maintenance Action or as a scheduled requirement on a periodic basis.
• Conditioning - Is a maintenance requirement whenever an Item is completely disassembled, Refurbished, tested and returned to a Serviceable Condition, meeting all requirements set forth is applicable Specifications. It may result from either a Scheduled or Unscheduled requirement and is generally accomplished at the depot/factory level of maintenance.

Maintenance Schedule - A comprehensive list of Planned Maintenance and its sequence of occurrence based on priority in a designated period of time; a list of Planned Maintenance Tasks to be performed during a given time period, together with the expected start times and durations of each of these tasks. Schedules can apply to different time periods (e.g. Daily Schedule, Weekly Schedule etc.)

Maintenance Shut-Down - A period of time during which a plant, department, process, or asset is removed from service specifically for maintenance.

MRO - See Maintenance Repair Operations.

MRO Materials Management - The overall management of the process for Requisitioning, Storage/Warehousing, Purchasing, Inventory Management and issue of MRO type Items used in the Maintenance Process.

MTBF - See Mean Time Between Failures.
MTTR - See Mean Time To Repair.

N

Non-destructive Testing (NDT) - Non-destructive testing of equipment to detect abnormalities in physical, chemical or electrical characteristics, using such technologies as Ultrasonic (thickness), Liquid Dye penetrates (cracks), X-ray (weld discontinuities), and Voltage Generators (Resistance).

NDT - See Non-destructive Testing

No Scheduled Maintenance - An Equipment Maintenance Strategy, where no Routine Maintenance Tasks are performed on the equipment. The only maintenance performed on the equipment is Corrective Maintenance, and then only after the equipment has suffered a Failure. Also described as a Run-To-Failure Strategy.

O

Obsolescence - Decrease in value or use of Items that have been superseded by superior items.

OBM - See Operator-Based Maintenance .

OEE - See Overall Equipment Effectiveness .

Oil Analysis - See Terotechnology .

On-Condition Maintenance - See Condition Based Maintenance.

On-Condition Task - A periodic or continuous inspection designed todetect a potential failure condition prior to functional failure. If the inspection reveals a potential failure condition, corrective action must be taken. If potential failure condition does not exist, nothing is done, item continues in service.

Operational Efficiency - used in the calculation of Overall Equipment Effectiveness. The actual output produced from an asset in a given time period divided by the output that would have been produced from that asset in that period, had it produced at its rated capacity. Normally expressed as a percentage.

Operator-Based Maintenance (OBM) - A Maintenance Excellence Strategy where equipment or process operators are trained and accountable for selected maintenance tasks. See Autonomous Maintenance.

Overhaul - A comprehensive Examination and restoration of an Item to an Acceptable Condition.

P

Pareto’s Principle - The Critical few, often about 20 percent, of parts or people or users that should receive attention before the insignificant many, which are usually about 80 percent.

Part Numbers - Unique identifying numbers and letters that denote each specific part Configuration; also called stock numbers or Item numbers.

Periodic Maintenance - Cyclic maintenance actions carried out at regular intervals, based on repair history data, use or elapsed time.

Percent Planned Work - The percentage of total work (in labor hours) performed in a given time period which has been planned in advance.

Performance Based Contract - A contract that clearly spells out the expected results from a contractor.

PERT Chart - See Project Evaluation & Review Technique (PERT) Chart.

P-F Interval - A term used in Reliability Centered Maintenance (RCM). The time from when a Potential Failure can first be detected on an asset or Component using a selected Predictive Maintenance task, until the asset or component has failed. Reliability Centered Maintenance (RCM) principles state that the Frequency with which a Predictive Maintenance task should be performed is determined solely by the P-F Interval.

Physical Asset Management - Gaining maximum productivity and effectiveness from physical systems and equipment.

Pick List - A selection of required stores Items for a Work Order or task.

Proactive Maintenance - A Maintenance Strategy that is anticipatory and includes a level of planning; any tasks used to predict or prevent Equipment Failures.

Probability - Probability is the likelihood or chance that something is the case or will happen. Probability theory is used extensively in areas such as statistics, mathematics, science and philosophy to draw conclusions about the likelihood of potential events and the underlying mechanics of complex systems.

Probabilistic Risk Assessment - A "top-down" approach used to apportion Risk to individual areas of plant and equipment, and possibly to individual Assets to achieve an overall Target Level of Risk for a plant, site or organization. These levels of Risk are then used in Risk-Based Techniques, such as Reliability Centered Maintenance (RCM) to assist in the development of appropriate Equipment Maintenance Strategies , and to identify required Equipment Modifications.

Probabilistic Safety Assessment (PSA) - Similar to Probabilistic Risk Assessment, except focused solely on Safety related Risks.

Procurement - Process of obtaining persons, Services, Supplies, Facilities, Materials, or Equipment. It may include the Functions of Design, Standards Determination, Specification Development, and Selection of Suppliers, Financing, Contract Administration, and other related Functions.

Purchase Requisition - The prime document raised by user departments authorizing the purchase of specific materials, parts, supplies, equipment or services from External Suppliers.

Purchase Order - The prime document created by an organization, and issued to an external supplier, ordering specific materials, parts, supplies, equipment or services.

Q

Quality Rate - A term used in the calculation of Overall Equipment Effectiveness. The proportion of the output from a machine or process which meets required product quality standards. Normally specified as a percentage.

R

Ranking Index for Maintenance Expenditures (RIME) - A maintenance priority methodology that provides a method to include a ranking of equipment/asset Criticality combined with the repair work classification ranking to produce a priority index value.

RCM - See Reliability Centered Maintenance (RCM).

Reaction Time-Response Time - The time required between the receipt of an order or impulse triggering some action and the initiation of the action.

Rebuild-Recondition - Total teardown and reassembly of a product, usually to the latest Configuration.

Refurbish - Clean and replace worn parts on a selective basis to make the product usable to a customer. Less involved than rebuild.

Regulatory Compliance Audit - Maintenace organizations around the world struggle to comply with new compliance regulations in areas such as health and safety, securities, money laundering, anti-terrorism and records management. The Regulatory Compliance Audit measures your ability to document, capture and organize information related to relevant compliance programs and allows your organization to correlate relevant laws and regulations with internal compliance activities and policies and procedures. As a result, Your organization can reduce the cost and complexity of monitoring and managing corporate compliance programs, balance compliance investment with top-down risk assessment and manage risk to provide greater oversight and assurance.

Reliable Planning Times - Setting a reliabile planning time for a maintenance activity allows a Maintenance Professional to do what needs to be done on time and within budget.

Reliability Performance Indicators (RPI) - Key metrics that relate to the measurement of asset reliability. Examples include:

• Maximum Corrective Time (MCT) and Maximum Preventive Time (MPT). The most time expected for maintenance, usually specified at 95 percent Confidence level.
• Mean Active Maintenance Time (MAMT). Weighed average of Mean Corrective Time and Mean Preventive Time but excluding administrative and logistics support time.
• Mean Downtime (MDT). Average time a system cannot perform its mission; including response time, active maintenance, supply time and administrative and logistics support time.
• Mean Time Between Failure (MTBF). The average time/distance/events a product or equipment process delivers between Breakdown.
• Mean Time Between Maintenance (MTBM). The average time between corrective and preventive actions.
• Mean Time To Repair (MTTR). The average time it takes to fix a failed Item.

Reorder Point (ROP) - Minimum quantity, established by economic calculation and management direction, which triggers the ordering of more Items.

ROP - See Reorder Point.

RPI - See Reliability Performance Indicators.

Routine Maintenance Tasks - Any maintenance task that is performed at a regular, predefined interval.

Running Maintenance - Maintenance that can be done while the asset is in service.

Run To Failure - See Gambling with Maintenance

S

Safety Consequences - A Failure has safety consequences if it causes a loss of Function or other damage that could hurt or kill someone.

Safety Meeting - Enables organizations to achieve regulatory compliance, reduce accidents/incidents and injuries, and improve maintenance operations.

Scoreboard Assessment - The analysis and summary of the results of a three to five day assessment by the Maintenance Excellence Institute professionals ask the 300 questions on the TMEI Scoreboard, and recording the specific answers, evaluating those answers by your maintenance organization. Our assessment report is a snap-shot of how you currently stand in your pursuit of Maintenance Excellence.

Scoreboard for Excellence - Baseline for today’s most comprehensive benchmarking guides for Facilities Management. Developed initially in 1981 and enhanced into its present format of five different Scoreboard for Excellence versions. See Scoreboard for Facilities Management Excellence and Scoreboard for Maintenance Excellence.

Scoreboard for Facilities Management Excellence - Today’s most comprehensive benchmarking guide for Facilities management and Maintenance Operations. Developed along the same format as the Scoreboard for Maintenance Excellence, the New Millennium version includes 27 evaluation (best practice) categories and 300 evaluation categories. An excellent benchmarking guide for Physical Asset Management operations within large physical plant and Facilities complexes such as universities, state and municipal building complexes, health-care Facilities, secondary school complexes and retail organizations with nation-wide system of company owned retail sites. Provides an essential benchmarking guide where results become an important external benchmark against recognized best practices and also the user’s baseline for Continuous Reliability Improvement.

Scoreboard for Maintenance Excellence - Today’s most comprehensive Benchmarking guide for plant Maintenance Operations. Developed initially in 1982 and enhanced into its present New Millennium format of 27 evaluation (best practice) categories and 300 evaluation categories. Used by over 4,000 organizations and for benchmarking all types of Maintenance Operations. Provides an essential benchmarking guide where results become an important external benchmark against recognized best practices and also the user’s baseline for Continuous Reliability Improvement.

Secondary Damage - Any additional damage to equipment, above and beyond the initial Failure Mode , that occurs as a direct consequence of the initial Failure Mode.

Secondary Failures - Malfunctions that are caused by the Failure of another Item.

Secondary Function - A term used in Reliability Centered Maintenance (RCM). The secondary functionality required of an asset - generally not associated with the reason for acquiring the asset, but now that the asset has been acquired, the asset is now required to provide this functionality. For example, a secondary Function of a pump may be to ensure that all of the liquid that is pumped is contained within the pump (i.e. the pump does not leak). An asset may have tens or hundreds of secondary functions associated with it.

Statistical Analysis - Statistics and the process of statistical analysis is a mathematical science pertaining to the collection, analysis, interpretation or explanation, and presentation of data. It is applicable to a wide variety of academic disciplines, from the natural and social sciences to the humanities, and to government and business. Within maintenance, the probability of failure is a key concern.

Stock Keeping Unit (SKU) - A warehouse Inventory management term for individual stock Items carried in Inventory.

SKU - See Stock Keeping Unit.

Stock Items - Same as SKU's. Items that are carried in Inventory.

Support Equipment - Items required to maintain systems in effective operating condition under various environments. Support equipment includes general and special-purpose vehicles, power units, stands, test equipment, tools, or test benches needed to facilitate or sustain maintenance action, to detect or diagnose malfunctions, or to monitor the operational status of equipment and systems.

T

Technical Data and Information - Includes, but is not limited to, production and engineering data, prints and drawings, documents such as standards, Specifications, technical manuals, changes in Modifications, Inspection and testing procedures, and performance and Failure data.

TrueWorkShop - An interactive experience where the attendee participates in the events during the learning process and produces a presentation that includes ideas for the pursuit of Maintenance Excellence, complete with a set of Maintenance Improvement goals and objectives and implementation plans for his or her Maintenance environment.

Troubleshooting - Locating or isolating and identifying discrepancies or malfunctions of equipment and determine the corrective action required.

Turnover - Measurement on either numbers of parts or on monetary value that evaluates how often a part is demanded versus the average number kept in Inventory. For example, if two widgets are kept in inventory and eight are used each year, then the turnover is 8/2 = four times per year. In monetary terms turnover is cost of inventory sold/average cost of inventory carried.

U

Universal Maintenance Standards - The Universal Maintenance Standards (UMS) method was developed by H.B. Maynard Inc. in the 1970's. It represents a predetermined standard data method. Standard data tables for a wide range of small maintenance task are available. Standard data represents the building blocks that can then be used to estimate larger, more complex jobs. Each standard data table provides what the operation is, what is included in the time value, and the table of standard data time for the variables that are included.

Unplanned Maintenance - Maintenance done without planning or scheduling; could be related to a Breakdown, running repair, or corrective work; any maintenance activity for which a pre-determined job procedure has not been documented, or for which all labor, materials, tools, and equipment required to carry out the task have been not been estimated, and their Availability assured before commencement of the task.

V

Value Engineering - A systematic approach to assessing and analyzing the user's requirements of a new asset, and ensuring that those requirements are met, but not exceeded. Consists primarily of eliminating perceived "non-value-adding" features of new equipment.

Vibration Analysis - The process of monitoring the condition of equipment, and the diagnosis of faults in equipment through the measurement and analysis of vibration within that equipment. Typically conducted through hand-held or permanently positioned accelerometers placed on key measurement points on the equipment. Commonly used on most large Items of rotating equipment, such as turbines, centrifugal pumps, motors, gearboxes etc.

W

Warranty - Guarantee that an Item will perform as specified for at least a specified time, or will be repaired or replaced at no cost to the user.

Work Request - The initial request for maintenance service or work usually as a statement of the problem. The work request provides the preliminary information for creation of the Work Order. Depending on the cost and scope of a work request an approval process may be required before the work order is created, planned and scheduled; The prime document raised by user departments requesting the initiation of a maintenance task. This is usually converted to a work order after the work request has been authorized for completion.

X

Y

Z