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  2. Control chart - Wikipedia

    en.wikipedia.org/wiki/Control_chart

    Control charts are graphical plots used in production control to determine whether quality and manufacturing processes are being controlled under stable conditions. (ISO 7870-1) [1] The hourly status is arranged on the graph, and the occurrence of abnormalities is judged based on the presence of data that differs from the conventional trend or deviates from the control limit line.

  3. Returns to scale - Wikipedia

    en.wikipedia.org/wiki/Returns_to_scale

    The main reason for the decreasing returns to scale is the increased management difficulties associated with the increased scale of production, the lack of coordination in all stages of production, and the resulting decrease in production efficiency. If output increases by more than the proportional change in all inputs, there are increasing ...

  4. Productivity - Wikipedia

    en.wikipedia.org/wiki/Productivity

    Productivity is the efficiency of production of goods or services expressed by some measure. Measurements of productivity are often expressed as a ratio of an aggregate output to a single input or an aggregate input used in a production process, i.e. output per unit of input, typically over a specific period of time. [ 1 ]

  5. Production (economics) - Wikipedia

    en.wikipedia.org/wiki/Production_(economics)

    An example of the efficiency calculation is that if the applied inputs have the potential to produce 100 units but are producing 60 units, the efficiency of the output is 0.6, or 60%. Furthermore, economies of scale identify the point at which production efficiency (returns) can be increased, decrease or remain constant.

  6. Operational efficiency - Wikipedia

    en.wikipedia.org/wiki/Operational_efficiency

    Improving operational efficiency begins with measuring it. Since operational efficiency is about the output to input ratio, it must be measured on both the input and output side. Quite often, company management is measuring primarily on the input side, e.g., the unit production cost or the man hours required to produce one unit.

  7. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical , electric power , mechanical work , light (radiation), or heat .

  8. Partial productivity - Wikipedia

    en.wikipedia.org/wiki/Partial_productivity

    Efficiency ratios; Managerial control ratio system; Single-factor productivity refers to the measurement of productivity that is a ratio of output and one input factor. A most well-known measure of single-factor productivity is the measure of output per work input, describing work productivity. Sometimes it is practical to employ the value ...

  9. Diminishing returns - Wikipedia

    en.wikipedia.org/wiki/Diminishing_returns

    Seen in BOTTOM, until an output of L 1, the output per unit is increasing. After L 1, the output per unit decreases to zero at L 3. Together, these demonstrate diminishing returns from L 1. A common example of diminishing returns is choosing to hire more people on a factory floor to alter current manufacturing and production capabilities.

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