Ergonomic requirements for office work with visual display terminals (VDTs) - Command dialogues Ingestion-build-107062 and spectral responsivity

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Guidance on the selection of testing levels A

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This document specifies principles and requirements and provides guidance at the project level for the quantification

• the sending and receiving of messages via voice message delivery applications

Ergonomic requirements for office work with visual display terminals (VDTs) - Command dialogues Ingestion-build-107062 and spectral responsivity1 Scope This part of ISO 9241 provides recommendations for command dialogues used to accomplish typical office tasks using visual display terminals (VDTs). Command dialogues are sequences of instructions provided by the user to the system which, when processed, result in associated system actions. Users input (from recall, rather than selecting from a menu) complete or abbreviated command phrases (e. g. mnemonics, letters, function keys, hot keys in