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  2. Safety integrity level - Wikipedia

    en.wikipedia.org/wiki/Safety_integrity_level

    In functional safety, safety integrity level (SIL) is defined as the relative level of risk-reduction provided by a safety instrumented function (SIF), i.e. the measurement of the performance required of the SIF. [1]

  3. Performance indicator - Wikipedia

    en.wikipedia.org/wiki/Performance_indicator

    Performance indicators differ from business drivers and aims (or goals). A school might consider the failure rate of its students as a key performance indicator which might help the school understand its position in the educational community, whereas a business might consider the percentage of income from returning customers as a potential KPI.

  4. Threshold limit value - Wikipedia

    en.wikipedia.org/wiki/Threshold_limit_value

    The TLV for chemical substances is defined as a concentration in air, typically for inhalation or skin exposure. Its units are in parts per million (ppm) for gases and in milligrams per cubic meter (mg/m 3 ) for particulates such as dust , smoke and mist .

  5. Performance measurement - Wikipedia

    en.wikipedia.org/wiki/Performance_measurement

    Performance Reference Model of the Federal Enterprise Architecture, 2005. [6] Defining performance measures or methods by which they can be chosen is also a popular activity for academics—for example a list of railway infrastructure indicators is offered by Stenström et al., [7] a novel method for measure selection is proposed by Mendibil et ...

  6. Process capability index - Wikipedia

    en.wikipedia.org/wiki/Process_capability_index

    If the upper and lower specification limits of the process are USL and LSL, the target process mean is T, the estimated mean of the process is ^ and the estimated variability of the process (expressed as a standard deviation) is ^, then commonly accepted process capability indices include:

  7. Overall equipment effectiveness - Wikipedia

    en.wikipedia.org/wiki/Overall_equipment...

    Performance: speed at which the Work Center runs as a percentage of its designed speed. Quality: Good Units produced as a percentage of the Total Units Started. It is commonly referred to as the first pass yield (FPY). To calculate the Total Effective Equipment Performance(TEEP), the OEE is multiplied by a fourth component:

  8. Benchmarking - Wikipedia

    en.wikipedia.org/wiki/Benchmarking

    Benchmarking is used to measure performance using a specific indicator (cost per unit of measure, productivity per unit of measure, cycle time of x per unit of measure or defects per unit of measure) resulting in a metric of performance that is then compared to others. [1]

  9. Factor of safety - Wikipedia

    en.wikipedia.org/wiki/Factor_of_safety

    In engineering, a factor of safety (FoS) or safety factor (SF) expresses how much stronger a system is than it needs to be for an intended load.Safety factors are often calculated using detailed analysis because comprehensive testing is impractical on many projects, such as bridges and buildings, but the structure's ability to carry a load must be determined to a reasonable accuracy.