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Action Plan

The specific steps that must be taken to execute group decisions, including who does what by when.

Area (or Zone) Maintenance

Maintenance management scheme where area production cells are responsible for their own maintenance; denotes decentralized maintenance management.


Maintenance: Lowest level of equipment that requires monitoring maintenance cost, equipment history, and reliability information, i.e. Motor, VFD, Pump, Gearbox, Fan, Fan coil, etc.


The total number of estimated labor hours, by craft and priority, required to complete all identified but incomplete planned and scheduled work. Used as an index in determining how well maintenance is keeping up with the rate of work generation. Used also to help establish the proper size and composition of the workforce.

Backlog Purge

The evaluation of backlog work orders that are duplicates, now considered as unnecessary, orders that the work has been completed, but not completed in the CMMS. The evaluation is conducted with representatives of Production, Maintenance and Work Planning. The identified work orders are then completed or cancelled in the CMMS with comments noting the reason for
removing the work order from the backlog.


The process of measuring products, services, and practices against those of leading companies. Comparing processes and performance with others.

Benefit Tracking

A defined cost benefit from a work process that is tracked over a period of time.

Best in Class

A best-known example of performance in a particular operation. One needs to define both the class and the operation to avoid using the term loosely.


Any resource whose capacity is equal to or less than the demand placed on it, or which controls the maximum rate of production of resources ahead or behind the resource in the process stream.


A basic problem-solving tool which uses the unevaluated ideas of group members to generate a list of possible options. Brainstorming can generate lists of (1) problems, (2) causes, (3) solutions and (4) actions, or any list where the creativity of the group would open up new possibilities.

Breakdown Maintenance

The performance of maintenance to put failed equipment back on-line; the failure having occurred without early warning by the Preventive Maintenance System.


Emergency or urgent work that breaks into scheduled work. Urgent work may have enough lead-time to be put on the Daily Schedule. See Reactive Maintenance.


A plan that includes an estimate of future costs and revenues related to expected activities. The budget serves as a pattern for and a control over future operations. MRO budget: Covers items needed for the operation of a facility, but are not part of the finished product. Capital Budget: Acquisition of equipment that is capitalized as a depreciable asset on a company’s balance sheet. Materials Budget: Covers a firm’s need for production materials and components.

Business Process Reengineering

A management approach aiming at improvements by means of elevating efficiency and effectiveness of the processes that exist within and across organizations. The key to BPR is for organizations to look at their business processes from a “clean slate” perspective and determine how they can best construct these processes to improve how they conduct business.
Business process reengineering is also known as BPR, Business Process Redesign, Business Transformation, or Business Process Change Management.

Capacity Constraint Resources

Non-bottleneck resources that, based on the sequence in which they perform their jobs, can act as a constraint.

Capital Project

Work authorized by a capital fund authorization.