International ISO Standard IS018183-1 First edition Geometrical product specifications 2024-03 (GPS) Partition - Part 1: Vocabulary and basic concepts Spécification géométrique des produits (GPS) - Partition - Partie 1: Vocabulaire et concepts de base Reference number ISO 18183-1:2024(en) @ ISO 2024 IS0 18183-1:2024(en) COPYRIGHT PROTECTED DOCUMENT @ IS02024 be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on or ISO's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: copyright@iso.org Website: www.iso.org Published in Switzerland @IS02024-Allrightsreserved i IS0 18183-1:2024(en) Contents Page Foreword. ..iv Introduction ..V 1 Scope. .1 2 Normative references .1 3 Terms and definitions ..1 .10 4 Partition concepts 4.1 .10 General. 4.2 Determination of the partition .10 4.3 Partitioned feature types .11 4.3.1 General .11 4.3.2 Feature discontinuity .11 Feature transition 4.3.3 ..11 4.4 Use of feature uncertainty zone identity sets in partition .11 4.5 Notation .12 ..12 5 General information ..13 Annex A (informative) Concept diagram Annex B (informative) Relationship to the ISO GPS matrix model ..15 Bibliography ..16 @ IS0 2024 - All rights reserved iii