# The Health and Safety (Display Screen Equipment) Regulations 1992, Paragraph


4.Interface between computer and operator/user
In designing, selecting, commissioning and modifying software, and in designing tasks using display screen equipment, the employer shall take into account the following principles:
(a)software must be suitable for the task;
(b)software must be easy to use and, where appropriate, adaptable to the level of knowledge or experience of the operator or user; no quantitative or qualitative checking facility may be used without the knowledge of the operators or users;
(c)systems must provide feedback to operators or users on the performance of those systems;
(d)systems must display information in a format and at a pace which are adapted to operators or users;
(e)the principles of software ergonomics must be applied, in particular to human data processing.

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Source: https://www.legislation.gov.uk/uksi/1992/2792/schedule/paragraph/wrapper4 (the official version)
Page: https://openlegislation.uk/health-and-safety-display-screen-equipment-regulations-1992/schedule/paragraph-wrapper4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.