This part of ISO 9241 establishes image quality re-quirements for the design and evaluation of single-and multi-colour VDTs. The requirements are stated as performance specifications, and the evaluations provide test methods and conformance measure-ments. It should be noted that, at present, the rec-ommendations are based on Latin, Cyrillic, and Greek origin alphabetic characters, and Arabic nu-merals.
Other factors that affect performance and comfort are coding, format, and the style of presentation of information. With the exception of their visual as-pects, they are not covered by this part of ISO 9241.
This part of ISO 9241 applies to the ergonomic de-sign of electronic displays for office tasks. Office tasks include such activities as data entry, text processing, and interactive inquiry, but do not in-clude recommendations for other specific appli-cations such as computer-aided design or process control.
It is planned to issue recommendations on such applications separately.