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In designing, selecting, commissioning and modifying software, and in designing tasks using display screen equipment, the employer shall take into account the following principles:
software must be suitable for the task;
software must be easy to use and, where appropriate, adaptable to the operator’s level of knowledge or experience; no quantitative or qualitative checking facility may be used without the knowledge of the workers;
systems must provide feedback to workers on their performance;
systems must display information in a format and at a pace which are adapted to operators;
the principles of software ergonomics must be applied, in particular to human data processing.