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It introduces key overview and concepts, including motivation, objectives, and expectations, then details modeling concepts such as UML and reusable patterns. Implementation guidance is provided through Proteus schema with primitive types, classes, and predefined or custom attributes, including reference and composition attributes. 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The full Legal Code of the license is available at [https://creativecommons.org/](https://creativecommons.org/)[ ](https://creativecommons.org/)licenses/by/4.0/legalcode. The following informative text is reproduced from [https://creativecommons.org/licenses/](https://creativecommons.org/licenses/)[ ](https://creativecommons.org/licenses/)[by/4.0](by/4.0:)[:](by/4.0:)  \nYou are free to:  \n• Share – copy and redistribute the material in any medium or format  \n• Adapt – remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms.  \nUnder the following terms:  \n• Attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.  \n• No additional restrictions – You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.  \nNotices:  \nYou do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.  \nNo warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.  \nContributors  \n• Yannik Filke (PTC)  \n• Luis Gomez (AVEVA)  \n• Leon Hanke (Aucotec)  \n• Idar Pe Ingebrigtsen (Equinor)  \n• David Kochmanski (Covestro)  \n• Marko Luukkainen (Semantum)  \n• Reiner Meyer-Rössl (Autodesk)  \n• Felix Schumacher (Siemens)  \n• Paul Snijder (Hexagon)  \n• Heiner Temmen (Evonik)  \n• Manfred Theißen (pnb plants & bytes/AixCAPE)  \n• Gregor Tolksdorf (Evonik)  \n• David Vazquez-Landa (BASF)  \n• Axel Wagner (Covestro)  \n• Wolfgang Welscher (X-Visual)  \n• Michael Wiedau (Evonik)  \n1 Overview and Concepts 13  \n1. Introduction 15  \n1.1. Motivation for DEXPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  \n1.2. Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  \n1.3. Expectations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  \n2. Modeling Concepts 17  \n2.1. Unified Modeling Language (UML) ....................................... 17  \n2.2. Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  \n3. Implementation in Proteus Schema 21  \n3.1. Primitive Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  \n3.2. Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  \n3.3. Predefined Data Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  \n3.4. Custom Data Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  \n3.5. Reference Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  \n3.6. Composition Attributes ............................................. 26  \n2 DEXPI Information Model 27  \n4. Package DexpiModel 29  \n4.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  \n4.2. ConceptualModel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  \n4.3. Dex","cbCaipqKJHyxjCx2","https://ap.wps.com/l/cbCaipqKJHyxjCx2","pdf",39560245,1222,"English","# Overview and Concepts\n## Introduction\n# Modeling Concepts\n## Unified Modeling Language (UML)\n## Patterns\n# Implementation in Proteus Schema\n## Primitive Types\n## Classes\n## Predefined Data Attributes\n## Custom Data Attributes\n## Reference Attributes\n## Composition Attributes\n# DEXPI Information Model\n## Package DexpiModel\n## Package MetaData\n## Package PlantStructure","[{\"question\":\"What is the purpose of the DEXPI P\\u0026ID Specification (Version 1.3)?\",\"answer\":\"It provides a standardized specification for representing and modeling P\\u0026ID information using the DEXPI information model and related structures, ensuring consistent engineering data representation.\"},{\"question\":\"Which modeling concepts are covered in the document?\",\"answer\":\"The document covers Unified Modeling Language (UML) and modeling patterns, along with supporting concepts introduced in the overview and introduction sections.\"},{\"question\":\"How does the specification describe implementation details?\",\"answer\":\"Implementation in Proteus schema is described through primitive types and classes, and through several attribute categories including predefined, custom, reference, and composition attributes.\"}]","DEXPI - P&ID Specification - Version 1.3 - Released by the DEXPI Initiative on June 1, 2021 | PDF",3079]