ISO INTERNATIONAL STANDARD 9241-143 First edition 2012-03-01 Ergonomics of human-system interaction Part 143: Forms ErgonomiedeIinteractionhomme-systeme- Partie 143:Formulaires Reference number ISO 9241-143:2012(E) ISO2012 No reproduction or networking permitted without license from IHS Not for Resale ISO9241-143:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either Iso at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale56.CH-1211Geneva20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2012-All rights reserved No reproduction or networking permited without license from IHS Not for Resale ISO9241-143:2012(E) Contents Page Foreword. Introduction. ..vii 1 Scope.. 2 Normative references.. 1 3 Termsanddefinitions. .2 4 Forms... .6 4.1 Selection.. .6 4.2 General requirementsand recommendations. .6 5 Information presentation 9 5.1 General.... .9 5.2 Layout. 5.3 Namesand labels 10 5.4 Visualcuesinfieldsandformselements. 6 Interaction.... 15 6.1 Navigation.. .15 6.2 Navigation by tab keys and scrolling ... 16 6.3 Input focus and cursors..... 17 6.4 6.5 Usercontrol. 22 6.6 Feedback 24 6.7 Access toforms and dialogue boxes. 6.8 Default values. 27 6.9 Defaultactionsforforms elements. 28 7 Validation 7.1 Single-field validation 30 7.2 Multiple-field validation...... 8 Choice of form elements.... 8.1 Accessibilityofformelements 8.2 Choice considerations. 30 8.3 Push buttons..... 31 8.4 Toggle buttons.... 8.5 Text entry fields. 31 8.6 Radio buttons. 32 8.7 Checkboxes 8.8 Stepperbuttons .33 8.9 Single-selection list boxes 34 8.10 Multiple-selection list boxes 34 8.11 Pop-up/dropdown list .... 8.12 Combination boxes.. .36 8.13 Single-selection hierarchical lists 37 8.14 Multiple-selection hierarchical lists.. 8.15 Analogue form elements (slider, rotary dials and equivalents) ... 8.16 Tabbed form elements.... 39 9 Formelement design 39 9.1 Alphanumeric text entry . 39 9.2 9.3 List-based elements for choice.. 42 CopyrightinternationalganzaStandardizaton'ghtsreseved ili No reproduction or networking permi thout license from IHS Not for Resale