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The purpose of this paper is to transfer the idea of changeability to a concrete technical application.

Based on the definition of changeability on a factory level, a transformation of the five change enablers specified therein for the work station level using the example of an aerodynamic feeding system takes place in this paper.

The observed aerodynamic feeding system can be determined as changeable.

Changeable systems are able to react with low effort to exterior influences, e.g. of the market, and thus represent a considerable competitive advantage.

The new element in this paper is the observation of change enablers on the work station level. This point of view enables the concrete figuration of changeable technical systems.

This article reviews the international literature of the last two decades on self‐injurious behaviour in prisons and jails and introduces the risk factors associated with this behaviour. Studies from a variety of countries investigated different samples (e.g. in jails or prisons; female or male inmates). We only chose those studies using a control group of inmates without self‐injurious behaviour. The findings on potential risk factors for self‐injurious behaviour are largely contradictory because of the differences in sample selection and dependent variables (deliberate self‐harm without suicidal intent vs. suicide attempts). We also discuss some methodological problems in predicting self‐injurious behaviour.