Technical terms of quality management: L



Facility for performing inspections, tests and calibrations. These can be chemical, metallurgical, geometric, physical, electrical or reliability tests. (On the basis of IATF 16949:2016)



See Life cycle costs.



Leadership is one of the quality management principles (see Quality management principles). You can find out more about this in the Quality management principles.


Lean management

Delayering of the hierarchy and improved customer-supplier relationships by streamlining the company and avoiding wasting resources.


Lean Quality Management

See Lean Management.


Liability for fault

Damage can be directly assigned to the party that caused it. Obligation to damage compensation on the basis of statutory provisions that require culpable behavior in the form of wrongful intent or negligence.


Life cycle costs

Combination of investment and cost accounting that reverts to the concept of the life cycle. Here, the cost-influencing factors are taken into account that often are not included in the cost accounting. A product‘s costs are analyzed across all of its life phases (from the development through to disposal). This results in recommendations for the product design and the procurement, with the objective of optimizing the total costs.


Limiting amount

Value for the lower limiting value and upper limiting value, which only differ by the sign. (On the basis of DIN 55350-12:1989)


Limiting amount of deviation

Amount of the lower limiting deviation or of the upper limiting deviation regardless of whether the amounts are equal or not.
(DGQ Volume 11-04:2009)


Limiting deviation

Lower limiting deviation or also upper limiting deviation. (On the basis of DIN 55350-12)


Limiting quality

Quality level at which the lot inspected has a low probability of acceptance. Also referred to as LQ. (On the basis of ISO 3534-2:2013)


Limiting sample

Object that physically represents the limiting value of a quality characteristic. (On the basis of DIN 55350-15)


Limiting value

Lower or upper limiting value. (On the basis of DIN 55350-15)
Limiting value distance
Upper limiting value minus actual value or actual value minus lower limiting value. (On the basis of DIN 55350-12)



Laboratory Information Management System. A category of software systems that deals with data processing in chemistry, physics, biology or medical laboratories.


Logistics quality

Ability to deliver and delivery reliability: The customer receives the right products in the right quantity at the right place and right time.


Lorenz curve

Graphical representation of statistical distributions and illustration of the extent of inequality. It was developed by Max Otto Lorenz.



Part or sub-group of a population formed under the same conditions as the population (in terms of the sampling purpose). (On the basis of ISO 3534-2)


LOV chart

Flow chart with assignment to the organizational unit. The direct interface to the process customer (line of visibility) is distinctly visible. The LOV chart also shows which organizational unit deals with which process step.


Lower limiting deviation

Lower limiting value minus the reference value. (On the basis of DIN 55350-12)



Limiting Quality. See Non-acceptable quality level.



Limiting Quality Level.



The Ludwig-Erhard-Prize is a German quality prize for outstanding achievements in competition which is awarded annually by the Ludwig-Erhard-Preis – Auszeichnung für Spitzenleistungen im Wettbewerb e.V. (ILEP) initiative. It was presented for the first time in 1997. The rating system‘s structure is similar to that of the European Quality Award. The Ludwig-Erhard-Prize fills the gap between individual national prizes in Germany and the EEA. This award bears the name of the German minister of economic affairs and later federal chancellor Ludwig Erhard (1897 – 1977), the “Vater des Wirtschaftswunders“, or leader of Germany‘s postwar economic recovery.

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