ISO/IEC/ INTERNATIONAL STANDARD IEEE 42020 First edition 2019-07 Software, systems and enterprise - Architecture processes Logiciel, systemes et entreprise - Processus d'architecture ISO IEC Reference number IS0/IEC/IEEE42020:2019(E) IEEE IS0/IEC2019 IEEE2019 IS0/IEC/IEEE 42020:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0/IEC 2019 @IEEE2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 respectiveaddressbeloworIso'smemberbodyinthecountryoftherequester. ISO copyright office Institute of Electrical and Electronics Engineers, Inc CP 401 · Ch. de Blandonnet 8 3 Park Avenue, New York CH-1214 Vernier, Geneva NY10016-5997,USA Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Email: [email protected] Website: www.iso.org Website: www.ieee.org Published in Switzerland @ IS0/IEC 2019- All rights reserved ii @ IEEE 2019 - All rights reserved IS0/IEC/IEEE 42020:2019(E) Contents Page Foreword .vi O Introduction .vii 1 Scope. .1 2 Normative references .1 3 Terms and definitions .1 4 Conformance .6 4.1 General 6 4.2 Approach to conformance .6 4.3 Full conformance cases. 6 4.4 Tailored conformance. 7 5 Process overview and application 1 5.1 General 7 5.2 Relationship of architecture to other processes and information elements 9 5.3 Architecture Governance and Management processes 10 5.4 Architecture Conceptualization, Evaluation and Elaboration processes. 10 5.5 Architecture Enablement process. 12 5.6 Relationship of architecture to design 12 5.7 Architecture adaptation. 13 5.8 Process application. 13 5.8.1 Criteria for processes. 13 5.8.2 Description of processes 14 5.8.3 General characteristics of processes 14 5.8.4 Tailoring 14 6 Architecture Governance process .15 6.1 Purpose. 15 6.2 Outcomes 15 6.3 Implementation 15 6.4 Activities and tasks. .15 6.4.1 Prepare for and plan the architecture governance effort 15 6.4.2 Monitor, assess and control the architecture governance activities 17 6.4.3 Establisharchitecturecollection objectives. 17 6.4.4 Make architecture governance decisions. 18 6.4.5 Monitor and assess compliance with governance directives and guidance 19 6.4.6 Review implementation of governance directives and guidance. 20 6.5 Work products.. 20 7 Architecture Management process. 20 7.1 Purpose. 20 7.2 Outcomes 20 7.3 Implementation 21 7.4 Activities and tasks. 21 7.4.1 Prepare for and plan the architecture management effort .21 7.4.2 Monitor, assess and control the architecture management activities. 22 7.4.3 Develop architecture management approach. 23 7.4.4 Perform management of the architecture collection.. 24 7.4.5 Monitor architecting effectiveness. 25 7.4.6 Prepare for completion of the architecture management plan. .26 7.5 Work products. .26 8 Architecture Conceptualization process 27 8.1 Purpose. .27 8.2 Outcomes .27 8.3 Implementation 27 @ IS0/IEC 2019 - All rights reserved @ IEEE 2019 - All rights reserved iii IS0/IEC/IEEE42020:2019(E) 8.4 Activities and tasks. 28 8.4.1 Prepare for and plan the architecture conceptualization effort 28 8.4.2 Monitor, assess and control the architecture conceptualization activities 29 8.4.3 Characterize problem space 30 8.4.4 Establish architecture objectives and critical success criteria 31 8.4.5 Synthesize potential solution(s) in the solution space. .32 8.4.6 Characterizesolutionsandthetradespace 33 8.4.7 Formulate candidate architecture(s) 35 8.4.8 Capture architecture concepts and properties. 36 8.4.9 Relate the architecture to other architectures and to relevant affected entities. 37 8.4.10 Coordinate use of conceptualized architecture by intended users. 37 8.5 Work products. 38 6 Architecture Evaluation process .38 9.1 Purpose. 38 9.2 Outcomes 39 9.3 Implementation. 39 9.4 Activities and tasks. 40 9.4.1 Prepare for and plan the architecture evaluation effor