EN 1332-3:2020

Identification card systems - User Interface - Part 3: Key pads

This document covers the ergonomic layout and usability of keypads. The keypad consists of numeric, command and function keys and alphanumeric characters. On the basis that keypad layout impacts performance (keying speed, and errors), this document aims to:
-   enhance usability,
-   ensure ease of use through consistency,
-   increase customer confidence,
-   reduce customer error,
-   improve operating time,
-   ensure ergonomic data entry.
This document specifies the arrangement, the number and location of numeric, function and command keys, including placement of alphabetic characters on numeric keys. Design requirements and recommendations are also provided.
This document applies to all identification card systems with a numeric keypad for use by the public for stationary or non-stationary devices. This document also covers keypads on touch sensitive devices.

Identifikationskartensysteme - Benutzerschnittstelle - Teil 3: Tastenfelder

Systèmes de cartes d'identification - Interface utilisateur - Partie 3 : Claviers

Le présent document traite de la présentation ergonomique et de la commodité d'utilisation des claviers. Le clavier comporte des touches numériques, de commande et de fonction, ainsi que des caractères alphanumériques. Partant du principe que la présentation du clavier a une incidence sur les performances (vitesse de frappe et erreurs), le présent document a pour but :
-   d'améliorer la commodité d'utilisation ;
-   d'assurer la facilité d'utilisation grâce à la cohérence de la présentation ;
-   d'augmenter l'assurance de l'utilisateur ;
-   de réduire les erreurs de l'utilisateur ;
-   de réduire le temps de fonctionnement ;
-   de garantir une saisie ergonomique des données.
Le présent document spécifie la disposition, le nombre et l'emplacement des touches numériques, des touches de fonction et des touches de commande, y compris l’emplacement des caractères alphabétiques sur les touches numériques. Des exigences et recommandations relatives à la conception sont également données.
Le présent document s’applique à tous les systèmes de cartes d’identification équipés d’un clavier numérique destinés au public pour les dispositifs fixes ou mobiles. Le présent document couvre également les claviers des dispositifs tactiles.

Sistemi z identifikacijskimi karticami - Uporabniški vmesnik - 3. del: Tipkovnice

General Information

• Status: Published
• Publication Date: 14-Jul-2020
• Withdrawal Date: 30-Jan-2021
• ICS: 35.240.15 - Identification cards. Chip cards. Biometrics
• Technical Committee: CEN/TC 224 - Machine-readable cards, related device interfaces and operations
• Drafting Committee: CEN/TC 224/WG 6 - User Interface
• Current Stage: 9020 - Submission to 2 Year Review Enquiry - Review Enquiry
• Start Date: 15-Oct-2025
• Completion Date: 15-Oct-2025
• Ref Project: SIST EN 1332-3:2020 - Identification card systems - User Interface - Part 3: Key pads

Relations

• Replaces: EN 1332-3:2008 - Identification card systems - Man-machine interface - Part 3: Keypads
• Effective Date: 10-Apr-2019

Overview

EN 1332-3:2020 - "Identification card systems - User Interface - Part 3: Key pads" (CEN, July 2020) defines ergonomic and usability requirements for keypads used with identification card systems. The standard covers physical mechanical and touch sensitive keypads, specifying layout, key types (numeric, command, function), placement of alphabetic characters on numeric keys, tactile features and visual properties to improve accessibility, reduce user errors and increase operating speed.

Key Topics and Requirements

• Scope & Purpose: Enhances usability, consistency and customer confidence for card-operated devices by standardizing keypad layout and ergonomics.
• Key sections: keypad (numeric + optional alphabetic), command keys, function keys, card feeder/contactless point and privacy shield.
• Numeric layout: Mandates a standard numeric arrangement and that key “5” includes a tactile identifier (a raised dot) to aid orientation for blind and visually impaired users. The dot must be raised at least 0.7 mm and must not obscure the key legend.
• Alphabetic characters: Permitted only when essential and, if used, placed on numeric keys per the standard; keys 1 and 0 contain no alphabetic characters.
• Command keys: Minimum required keys are Enter/OK and Cancel; Clear is optional. The document defines recommended colours and legends for these keys (e.g., green for Enter/OK, red for Cancel, yellow for Clear) and use of tactile/visible symbols.
• Visual & geometric properties: Guidance on contrast, key size, spacing, legend height, key shapes, activation force, and input feedback to ensure legibility and ergonomic data entry.
• Touch sensitive devices: Includes specific guidance for touchscreens and touch sensitive keypads, differentiating stationary from non‑stationary devices.

Applications and Users

EN 1332-3:2020 is directly applicable to the design, manufacture and procurement of devices that accept identification cards and use numeric keypads, including:

• ATMs, POS terminals and ticketing kiosks
• Parking meters, transit validators and self-service kiosks
• Access control readers and e-government card readers

Primary users:

• Device manufacturers and hardware designers
• UX/UI and accessibility engineers
• Procurement teams and compliance officers
• Systems integrators and public-sector planners

Benefits include improved accessibility for older people and users with disabilities, reduced PIN entry errors, consistent cross‑sector user experience and enhanced public trust.

Related Standards

• EN 1332 series (user interface for identification card systems)
• CEN/TS 15291 - Guidance on design for accessible card-activated devices

Keywords: EN 1332-3:2020, identification card systems, keypad ergonomics, user interface, numeric keypad, touch sensitive devices, CEN standard, accessibility.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2020
Nadomešča:
SIST EN 1332-3:2008
Sistemi z identifikacijskimi karticami - Uporabniški vmesnik - 3. del: Tipkovnice
Identification card systems - User Interface — Part 3: Key pads
Identifikationskartensysteme - Schnittstelle Mensch - Maschine - Teil 3: Tastenfelder
Systèmes de cartes d'identification — Interface utilisateur — Partie 3 : Claviers
Ta slovenski standard je istoveten z: EN 1332-3:2020
ICS:
35.240.15 Identifikacijske kartice. Čipne Identification cards. Chip
kartice. Biometrija cards. Biometrics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1332-3
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2020
EUROPÄISCHE NORM
ICS 35.240.15 Supersedes EN 1332-3:2008
English Version
Identification card systems - User Interface - Part 3: Key
pads
Systèmes de cartes d'identification - Interface Identifikationskartensysteme - Schnittstelle Mensch -
utilisateur - Partie 3 : Claviers Maschine - Teil 3: Tastenfelder
This European Standard was approved by CEN on 8 June 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1332-3:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Sections of the device . 7
4.1 General . 7
4.2 Numeric keys . 7
4.3 Alphabetic characters . 8
4.4 Command keys . 9
4.4.1 General . 9
4.4.2 Principles for the arrangement of command keys . 10
4.5 Function keys . 12
5 Physical mechanical keypad . 13
5.1 Visual properties . 13
5.1.1 Colour and keypad surface . 13
5.1.2 Contrast between key legend and keys . 13
5.1.3 Contrast between keys and casing . 13
5.1.4 Illuminated keys . 13
5.2 Dimensions . 13
5.2.1 Size of keys. 13
5.2.2 The space between each key . 14
5.2.3 Identification of key groups . 14
5.2.4 Height of key legends . 14
5.3 Geometrical properties . 15
5.3.1 Shape of keys . 15
5.3.2 Key top property . 15
5.3.3 Key surface . 15
5.3.4 Input feedback . 15
5.3.5 Key activation force . 15
5.3.6 Number and positioning of key legends . 15
6 Touch sensitive keypad . 15
6.1 General . 15
6.2 Numeric and command keys . 16
6.3 Visual properties . 16
6.4 Dimensions . 16
6.5 Actuation . 16
7 Card feeder and contactless point . 17
8 Privacy shield . 17
Annex A (informative) Optional function keys that may be present . 18
Bibliography . 19

European foreword
This document (EN 1332-3:2020) has been prepared by Technical Committee CEN/TC 224 “Personal
identification and related personal devices with secure element, systems, operations and privacy in a
multi sectorial environment”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2021, and conflicting national standards shall
be withdrawn at the latest by January 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1332-3:2008.
The main changes compared to the previous edition are listed below:
— inclusion of touch sensitive devices;
— differentiation between stationary and non-stationary devices;
— clarification on some issues;
— general updating of text to modern situations.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
Machine readable cards facilitate the provision of a growing variety of services across Europe. The
purpose of the EN 1332 series is to increase the accessibility of these services for the benefit of
consumers. This will be achieved by facilitating the inter-sector and cross-border interoperability of
machine readable cards and to do so with the maximum possible degree of user-friendliness.
The EN 1332 series addresses the needs of the widest possible range of users, for example the aged,
minors, people with disabilities, those with learning difficulties, first time users and those not
conversant with the local language.
The EN 1332 series specifies:
a) design principles for the user interface (including symbols) to be incorporated into the design of
card operated devices, but not the machine operations associated with the selection and delivery of
goods or services ;
b) tactile identifiers incorporated into the design of machine readable cards;
c) standard layout for the keypads of card operated devices;
d) coding of user requirements for people with special needs;
e) tactile markings for differentiating cards by application.
The contents of the EN 1332 series are generically based, not sector specific, and cover card operated
devices. It is recognized that the equipment can also be operated by other means, such as the insertion
of notes and coins, but the scope of this document has been, as indicated, narrowly defined.
Issues relating to such consumer concerns at the man-machine interface as PIN presentation are not
dealt with in the EN 1332 series.
The EN 1332 series has been completed with CEN/TS 15291 – Guidance on design for accessible card-
activated devices. This technical specification provides guidance for the design and location of card
activated devices and the immediate environment to facilitate access for the users.
1 Scope
This document covers the ergonomic layout and usability of keypads. The keypad consists of numeric,
command and function keys and alphanumeric characters. On the basis that keypad layout impacts
performance (keying speed, and errors), this document aims to:
— enhance usability,
— ensure ease of use through consistency,
— increase customer confidence,
— reduce customer error,
— improve operating time,
— ensure ergonomic data entry.
This document specifies the arrangement, the number and location of numeric, function and command
keys, including placement of alphabetic characters on numeric keys. Design requirements and
recommendations are also provided.
This document applies to all identification card systems with a numeric keypad for use by the public for
stationary or non-stationary devices. This document also covers keypads on touch sensitive devices.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp/ui
3.1
command key
“cancel”, “enter” or “clear” key
Note 1 to entry: These keys are described in Table 1.
3.2
disability
any restriction or lack of ability (resulting from an impairment) to perform an activity in the manner or
within the range considered normal for a human being
Note 1 to entry: Disability can be temporary.
[SOURCE: EN ISO/IEC 24751-2:2008(en), 3.15]
3.3
function key
key that either has a dedicated function (hard key) or a variable function which depends on the mode of
operation (soft key)
Note 1 to entry: See Table A.1 in Annex A for examples of function keys.
3.4
graphical symbol
visually perceptible figure with a particular meaning used to transmit information independently of
language
[SOURCE: ISO 7001:2007(en), 3.1]
3.5
key legend
text or graphical symbol on the key to explain visually the use of the key
3.6
keypad
arrangement of numeric, command and, where required, function and/or alphanumeric keys laid out in
a specific manner
Note 1 to entry: Keypads can be physical mechanical or touch sensitive.
3.7
non-stationary device
small, compact, lightweight input device which is movable to a position that the user needs
3.8
numeric key
key on a keyboard that contains the characters 0 to 9
3.9
personal identification number
PIN
code or password that the customer possesses for verification of identity
3.10
sans serif typeface
font family derived from Antiqua in which the line strength is almost uniform and which does not have
serifs
3.11
serif
small line attached to the end of a stroke in a letter
Note 1 to entry: Also called foot.
3.12
stationary device
input device that is fixed to a specific location and that is not portable, but may be adjustable, e.g. in
height
3.13
tactile
feelable by touch
3.14
tactile identifier
raised dot on the “5” key to facilitate orientation
3.15
tactile symbol
graphical symbol on the key to explain tactually the use of the key
3.16
touch sensitive device
input device that produces a position and selection input signal from a finger touching, lifting off or
moving across a display
[SOURCE: ISO/TS 9241-411:2012, 3.20]
4 Sections of the device
4.1 General
There may be three sections of the device:
— keypad, covering:
— numeric section optionally including alphabetic characters,
— command key section,
— function key section,
— card feeder and contactless point,
— protection shield.
The input area (keypad) shall be at the bottom of the device, clearly distinguished from a display or an
information area.
4.2 Numeric keys
All keypads shall provide for the entry of the decimal numeric characters 0 to 9.
The arrangement of numeric keys shall be according to Figure 1.
The “5” key shall be identified by a tactile identifier.
NOTE 1 This is to assist blind and visually impaired people.
The tactile identifier shall be a raised dot.
The raised dot shall be raised at least 0,7 mm and its position shall not interfere with the legibility of the
key legend.
Other tactile identifiers or raised numerals shall not be present on the numeric keys.
For all numeric keys the colour shall not be green, red, yellow.
Figure 1 — Arrangement of numeric key on keypad
NOTE 2 Figure 1 is not to scale.
4.3 Alphabetic characters
Alphabetic characters shall only be used if they are essential for performance of the task.
If used, they shall not interfere with the legibility of the key legend.
If alphabetic characters are required then they shall be placed on the numeric keys as specified in
Figure 2.
NOTE 1 Keys 1 and 0 contain no alphabetic characters.
Figure 2 — Placement of Latin alphabetic characters on the numeric keys
NOTE 2 Figure 2 is not to scale.
NOTE 3 In some circumstances it could be more appropriate to place the alphabetic characters on the casing
instead on the key top.
There are other alphabetic characters which may also be present on the key surface.
4.4 Command keys
4.4.1 General
The keys “cancel” and “enter” shall be present on a keypad as a minimum. The command key “clear”
may also be present.
The functional description and design of the command keys is mandatory as according to Table 1.
E
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