ISO/IEC/IEEE 42020:2019

INTERNATIONAL ISO/IEC/
STANDARD IEEE
First edition
2019-07
Software, systems and enterprise —
Architecture processes
Logiciel, systèmes et entreprise - Processus d'architecture
Reference number
©
ISO/IEC 2019
©
IEEE 2019
© ISO/IEC 2019
© IEEE 2019
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© ISO/IEC 2019 – All rights reserved
ii © IEEE 2019 – All rights reserved

Contents Page
Foreword .vi
0  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 . 7
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 Establish architecture collection 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
© ISO/IEC 2019 – All rights reserved
© IEEE 2019 – All rights reserved iii

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 Characterize solutions and the tradespace .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
9 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 effort .40
9.4.2 Monitor, assess and control the architecture evaluation activities .41
9.4.3 Determine evaluation objectives and criteria .42
9.4.4 Determine evaluation methods and integrate with evaluation objectives
and criteria .43
9.4.5 Establish measurement techniques, methods and tools .43
9.4.6 Collect and review evaluation-related information .44
9.4.7 Analyze architecture concepts and properties and assess stakeholder value.44
9.4.8 Characterize architecture(s) based on assessment results .45
9.4.9 Formulate findings and recommendations .46
9.4.10 Capture and communicate evaluation results .46
9.5 Work products .47
10 Architecture Elaboration process .
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