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IDENTIFICATION CARD SYSTEMS - MAN-MACHINE INTERFACE - PART 3: KEYPADS
Publisher: British Standards Institution
Published:
Available Formats: PDF - English, Hardcopy - English More Info on product formats
ForewordIntroduction1 Scope2 Normative references3 Definitions4 Sections of the keypad 4.1 General 4.2 Numeric keys 4.3 Placement of alphabetic characters on numeric keys 4.4 Command keys 4.4.1 Generality 4.4.2 Principles for the arrangement of command keys 4.5 Function keys5 Recommendations for design 5.1 General design recommendations 5.2 Optical properties 5.2.1 Colour and keypad surface 5.2.2 Contrast between characters and keys 5.2.3 Contrast between keys and casing 5.2.4 Illuminated keys 5.3 Dimensions 5.3.1 Size of keys 5.3.2 The space between each key 5.3.3 Identification of key groups 5.3.4 Height of characters on the keys 5.4 Geometrical properties 5.4.1 Shape of keys 5.4.2 Key tops 5.4.3 Key material 5.4.4 Feedback and ease of keying 5.4.5 Force key activation 5.4.6 Number and positioning of key legends6 Conformance7 Labelling and packagingAnnex A (informative) - Optional function keys that may be presentBibliography
Describes the ergonomic layout and usability of keypads. The keypad may consist of numeric, command, function and alphanumeric keys.
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