This ECMA Standard specifies requirements for Visual Display Terminals (VDT) using a monochromatic CRT and an associated keyboard input.
This Standard applies specifically to VDTs used intensively by a seated operator who is a skilled typist, for data entry work, data acquisition, interactive communication, or word processing.
The requirements of this Standard are restricted to those features of the display unit and keyboard which are entirely under the control of the manufacturer and, as such, are mandatory.
This Standard does not address those ergonomic considerations which are under the control of the user since these can be given only as recommendations. Recommendations for these considerations are to be found in ECMA TR/22.