EN 1332-3:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 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 keys
5 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 legends
6 Conformance
7 Labelling and packaging
Annex A (informative) - Optional function keys that may be present
Bibliography

This European Standard covers the ergonomic layout and usability of keypads. The keypad may consist of numeric, command, function and alphanumeric keys. On the basis that keypad layout impacts performance (keying speed and errors), this European Standard aims to:- enhance usability; - ensure ease of use through consistency;- increase customer confidence;- reduce customer error;- improve operating time;- ensure ergonomic data entry.This European Standard specifies the arrangement, the number and location of numeric, function and command keys, including placement of alphabetic characters on numeric keys. Design recommendations are also provided.This standard applies to all identification card systems equipped with a numeric keypad for use by the public. Personal card reading devices, such as mobile phones, are outside the scope of this standard.This standard does not cover virtual numeric keypad on screens for PIN entry.This standard applies to all identification card systems equipped with a numeric keypad for use by the public. Personal card reading devices, such as mobile phones, are outside the scope of this standard.This standard does not cover virtual numeric keypad on screens for PIN entry.