Inherence

Inherence (from the Latin inhaerere, hanging in something ', stick to something ') generally refers to the indwelling or adhesion.

Philosophy

In philosophy, the term inherence denotes the fact that some properties necessary to belong to certain things. There is an intimate connection ( inherence ) between a property and the support of the adhering or inherent property. Thus, the inherence emphasizes relationships and dependencies. However, the term also includes those properties that can adhere to a thing or a substance through a random and represent therefore no need. These are so-called commercial.

Example: In the statement, the body is heavy, the property of severity liable necessary at the presence of a body. Because all bodies are material and therefore difficult (sense). The weight, or more precisely its mass - Weight formed only under the influence of a force such as the gravity - is the inherent property of a body. When the exemplary body should still be in color, then the color would be just a random, but not a necessary property. However, they adhere - in this example - to the body.

In contrast to the inherence, the term subsistence.

Technology

In technology, we often speak of inherent safety, if a technical system is constructed such that it operates safely after failure of multiple components. Tellingly, however, would be the term redundancy as inherence for a multi-channel security. Prominent examples of this are hybrid drives of missiles, as the term is often used in conjunction with designed for specific incidents nuclear power plants. Especially pebble reactors are called by proponents of nuclear technology in this context. It should be noted that even with the operation as inherently safe, designated facilities, there are residual risks.

In English, the term is mostly walk-away -safe ( German for about " them - weggeh - safe" ) is used for this. He states that a system is designed so that if you leave it, it will run safely (without staff) continue and eventually turn itself off. Because the time of each security system eventually stops working ( due to wear ), one can use the term in the same context as inherent.

In the context of risk reduction in accordance with EN ISO 14121-1, EN ISO 12100-1 or, the term is used as part of the inherent safety risk reduction process. The aim here is to let a potential danger already do not occur at the source only. This means that, for example, at a risk of crushing the unsafe motion is completely eliminated, in which the function is adapted to be met to the extent that it no longer needs the hazardous movement. For redundant safety systems according to EN ISO 13849 failure probability calculations are made which fall off at a Inherent design, since the hazards do not arise.

The quality is referred to as intrinsic characteristics, in which case, as opposed to " assigned " inherently " rather" one unit inherent "means, especially as a permanent feature, such as in a technical sense, the diameter of a screw.

Inherent characteristics are therefore those that the unit concerned - in modern quality management this may be a product, a process or a system - inherent and thus make their texture. Characteristics such as cost or price shall be deemed assigned to features which are not inherent to the unit concerned.