| Name | Definition |
| Asset | Asset is an individual machine which is part of cell involved to perform certain operation in production. |
| Attributed Losses | Production losses that are identified and assigned to particular causes or categories. |
| Availability Part Loss | Loss of machine availability specifically attributed to downtime events that reduce the amount of scheduled production time during which a machine is actually available and running. |
| Availability | The availability of an asset or a cell is defined by the percentage of time that it was available for out of the total planned production time. |
| Bad Part JPH | Rate at which defective or rejected parts are produced, measured as the number of bad parts generated per hour of production. |
| Bad Parts | Bad parts refers to the total number of parts produced by a cell or asset that does not meet the quality requirements. |
| Blocked | A condition where a machine or process cannot proceed because the next stage in the production line is full or unable to accept parts, causing upstream stoppages and impacting overall line efficiency. |
| Bottleneck | A point in production where the capacity is limited or slower than other steps, causing the entire production line to slow down or accumulate work-in-progress. |
| Cell | Cells are sets of machines that are grouped by the parts that they produce |
| Critical cells | Key production units or work cells that are essential to the overall flow and efficiency of the manufacturing process. |
| Cycles | A sequence of operations that a machine performs before returning to a home state. A cycle is any repetitive process that machines on a manufacturing line go through. |
| Cycling | A machine is cycling when it is actively performing its repetitive operational process or movement to produce parts or complete tasks. Cycling refers to the machine running through its full production cycle, which includes all the steps or operations needed to produce one unit or part. |
| Default Shift Group | Default shift group is an pre-selected shift group from the list of shift groups which contains all shift details. |
| Dependent Assets | Machines, equipment, or processes whose operation or performance is directly influenced by or reliant on other assets within the production line or system. |
| Down | A machine is considered down when it is not operational and unable to perform production tasks during its scheduled run time. This downtime can be either planned (such as scheduled maintenance, changeovers, or upgrades) or unplanned (due to unexpected failures, breakdowns, jams, or operator absence). |
| Downstream | A cell or asset that is responsible for receiving a part from the selected cell or asset would be downstream. This means that for a part to exit the selected asset, it has to move to the asset directly after it on the line, in other words its downstream. |
| Downtime | Any period when a machine or production process is not operational and unable to produce parts during its scheduled run time. |
| Good Part JPH | Number of quality parts produced per hour that meet the required specifications without defects or rework. |
| Good Parts | Finished products or components that meet all quality standards and specifications without defects, rework, or scrap. |
| Home State | The default or baseline operational state of a machine or asset when it is ready and available for normal production activities. |
| I/O Transition Sequence | The ordered series of input and output signal changes or events that occur during the operation of a machine or automated process. This sequence captures how the machine’s inputs (such as sensors, switches, or operator commands) change state and how those changes trigger corresponding outputs (like actuators, motors, or indicators) in a defined order to complete a production cycle or process step. |
| Interactions | Communication, data exchange, and coordinated activities between machines, operators, control systems, and peripheral devices. |
| JPH | Jobs per hour or number of parts to be produced in an hour |
| Loss Type | Refers to the various categories of production inefficiencies or wastes that reduce overall equipment effectiveness (OEE), capacity, and profitability. |
| MTBF | Measures the average time a machine or system operates continuously without experiencing a failure. It represents the expected elapsed time between inherent failures during normal operation of repairable equipment. |
| MTTR | Measures the average time required to repair a machine or system after a failure occurs and restore it to full operational status. It includes the entire repair process—from detecting the failure, diagnosing the problem, performing the repair, to testing and confirming the machine is running again. |
| Non compliant parameters | Process variables, product characteristics, or quality attributes that fall outside the specified acceptable limits or standards set for production. |
| Non- production Interval | Refers to periods during a manufacturing process when the equipment or production line is not actively producing parts or adding value. |
| Off shift | Refers to the time period outside of the regular or scheduled working shifts in a manufacturing or maintenance context. It typically means hours when the production line or facility is not staffed or actively operated by the regular workforce, such as nights, weekends, holidays, or any non-working hours. |
| Off Shift Bad Parts | The total number Bad or rejected parts produced outside planned and valid production time. |
| Off Shift Good Parts | The total number of good or accepted parts produced outside planned and valid production time. |
| Off Shift Production | The total number of parts produced outside planned and valid production time. |
| On Shift Bad Parts | The total number Bad or rejected parts produced during valid production time in shift excluding downtime, breaks etc. |
| On Shift Good Parts | The total number good or accepted parts produced during valid production time in shift excluding downtime, breaks etc. |
| On Shift Production | The total number of parts produced during valid production time in shift excluding downtime, breaks etc. |
| Parameter | A measurable variable or characteristic within a production process that influences the outcome or quality of the product. Parameters can include factors such as temperature, pressure, speed, cycle time, or any operational setting that affects how a machine or process performs. |
| Part Acceptance | The process of evaluating and approving parts to ensure they meet predefined quality standards and specifications before they are used in production or shipped to customers |
| Part rejects | Products or components that fail to meet the required quality standards or specifications and are therefore deemed unusable or unacceptable for further processing, assembly, or shipment. |
| Part Serial Number | A unique identifier assigned to an individual manufactured part or component to enable precise tracking and traceability throughout its lifecycle. This serial number distinguishes one part from another, even if they are of the same model or type. |
| Part Type JPH | The production rate measured specifically for a certain type or category of part within a manufacturing process. |
| Part Type/Part Variant | Classification or category of a specific part or component based on its design, function, or manufacturing requirements |
| Parts OK | The count or number of parts produced during manufacturing that meet all quality standards and specifications, meaning they are accepted as good, usable products without defects or rework. |
| Parts with Reworks | Manufactured parts that initially fail to meet quality standards or specifications and require corrective actions—such as repairs, adjustments, or modifications—before they can be accepted as good parts. |
| Performance | Refers to how effectively a machine, process, or production line operates relative to its designed or expected capability. |
| Process Parameters | Measurable variables or settings within a manufacturing process that directly influence the outcome, quality, and efficiency of the production. They represent the operational conditions under which a process runs and must be controlled within specified limits to ensure consistent and high-quality products. |
| Quality | The quality of an asset or a cell is defined as the percentage of good parts produced out of total production |
| Quality Parameters | Critical, measurable attributes or criteria used to systematically evaluate and ensure the quality of products and processes. They serve as fundamental indicators that define whether a product meets the required standards and customer expectations. |
| Self Cycle Duration/Time | Time taken for an asset to complete one cycle considering its own operations. |
| Self Performance | The self performance of an asset or cell is defined as the rate of production considering only the time when the asset was cycling divided by the target JPH. |
| Shift | A designated time period during which a group of workers operate machinery and perform production tasks. |
| Shift Group | Shift groups contains the details about the number of shifts, shift start and end time and break details. |
| Starved | A machine is starved when it is unable to operate at its full capacity because it is waiting for input materials or parts from an upstream process. In other words, the machine is idle or underutilized because the preceding step in the production line has not supplied enough parts or materials for it to continue working |
| Static Delays | Static delays are conditions in which the asset is waiting between operations, usually a delay that is added by the PLC programmers that can be eliminated. |
| Stoppages | Stoppages are events where an asset is down for 15 minutes or less. |
| Stuck States | Stuck states are events in which an asset is cycling but gets interlocked in a suboptimal state |
| Target cycle time | Target Cycle Time is the ideal time allocated to produce one unit of a product, adjusted to meet customer demand and reflect actual production efficiency. |
| Target JPH | Target JPH (Jobs Per Hour) is the planned or desired production rate for a specific part or product type, expressed as the number of units (jobs) that should be completed per hour to meet production goals or customer demand. |
| Total Cycle Time | The complete time taken to produce a single unit or complete one full production cycle from start to finish. |
| Total Part JPH | The total number of parts produced per hour on a machine or production line, including both good and scrap parts. |
| Total Parts | The overall count of parts produced within a specific production period, including all units manufactured regardless of their quality status (good or defective). |
| Total Performance | The total performance of an asset or cell is defined as the rate of production considering only the time when the asset was available and capable of producing divided by the target JPH. |
| Total Production | The overall quantity of products or parts produced by a machine, production line, or facility within a specified period. |
| Total time on line | The entire duration that a production line or machine is actively engaged in producing parts or products during a given period. |
| Unattributed Losses | Losses that are currently not classified in any category and are unaccounted for. |
| Upstream | A cell or asset that is responsible for providing a part to the selected cell or asset would be its upstream. This means that for a part to enter the selected asset, it has to move from the asset directly before it on the line, in other words its upstream. |
| Variable Self Duration | If cycles for the same asset are taking variable amounts of time, they can be referred to as having variable cycle durations. This indicates that the same operation can be performed more optimally (in the faster cycles). The fast and slow cycles can be compared to exploit this opportunity.
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