International 4 ISO Standard IS019450 First edition Automation systems and integration Object-Process 2024-01 Methodology Systemes d'automatisation et integration - Object-Process Methodology Reference number IS0 19450:2024(en) @ ISO 2024 IS0 19450:2024(en) COPYRIGHT PROTECTED DOCUMENT @IS02024 Ali rights reserved. Uniess otherwise specified, or required in the context of its impiementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below orIso's memberbody in the country oftherequester. ISso copyright office CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone:+41227490111 Email: [email protected] Website: www.iso.org Published in Switzerland @IS02024-Allrightsreserved ii IS0 19450:2024(en) Contents Page Foreword ..vi Introduction. vii 1 Scope. 2 Normative references .1 3 Terms and definitions. .1 4 Symbols ..8 5 Conformance 10 6 Object-Process Methodology (OPM) principles and concepts 10 6.1 OPM modelling principles.. .10 6.1.1 Modelling as a purpose-serving activity .10 6.1.2 Unification of function, structure, and behaviour. .11 6.1.3 Identify functional value. .11 6.1.4 Function versus behaviour. .11 6.1.5 System boundary setting 12 6.1.6 Clarity and completeness trade-off 12 6.2 OPM fundamental concepts. 12 6.2.1 Bimodal representation 12 6.2.2 OPM modelling elements. 12 6.2.3 OPM things: objects and processes 13 6.2.4 OPM links: procedural and structural 13 6.2.5 OPM context management .14 6.2.6 OPM model implementation (informative) .14 7 OPM thing syntax and semantics 15 7.1 Objects 15 7.1.1 Description 15 7.1.2 Representation 15 7.2 Processes 15 7.2.1 Description 15 7.2.2 Representation. .16 7.3 OPM things. .16 7.3.1 OPM thing defined. .16 7.3.2 Object-process test .16 7.3.3 OPM thing generic properties. .17 7.3.4 Default values of thing generic properties. .17 7.3.5 Object states .18 8 OPM link syntax and semantics overview 20 8.1 Procedural link overview 20 8.1.1 Kinds of procedural links. 20 8.1.2 Procedural link uniqueness OPM principle 20 8.1.3 State-specified procedural links. 20 8.2 Operational semantics and flow of execution control 20 8.2.1 Event-Condition-Action control mechanism 20 8.2.2 Preprocess object set and postprocess object set 21 8.2.3 Skip semantics of condition versus wait semantics of non-condition links 21 9 Procedural links. 22 9.1 Transforming links 22 9.1.1 Kinds of transforming links 22 9.1.2 Consumption link. 22 9.1.3 Result link. 23 9.1.4 Effectlink 23 9.1.5 Basic transforming links summary 23 @ IS0 2024 - All rights reserved iii IS0 19450:2024(en) 9.2 Enabling links. .24 9.2.1 Kinds of enabling links 24 9.2.2 Agent and agent link. 24 9.2.3 Instrument and instrument link 24 9.2.4 Basic enabling links summary 25 9.3 State-specified transforming links 26 9.3.1 State-specified consumption link 26 9.3.2 State-specified result link 26 9.3.3 State-specified effect links 27 9.3.4 State-specified transforming links summary 29 9.4 State-specified enabling links. 30 9.4.1 State-specified agent link 30 9.4.2 State-specified instrument link 30 9.4.3 State-specified enabling links summary 31 9.5 Control links. 31 9.5.1 Kinds of control links 31 9.5.2 Event links. .32 9.5.3 Condition links .37 9.5.4 Exception links. 44 10 Structural links 45 10.1 Kinds of structural links 45 10.2 Tagged structural link .45 10.2.1 Unidirectional tagged structural link. 45 10.2.2 Unidirectional null-tagged structural link .45 10.2.3 Bidirectional tagged structural link 46 10.2.4 Reciprocal tagged structural link 46 10.3 Fundamental structural relations... .47 10.3.1 Kinds of fundamental structural relations .47 10.3.2 Aggregation-participation relation link. 48 10.3.3 Exhibition-characterization link 49 10.3.4 Generalization-specialization and Inheritance .52 10.3.5 Classification