# B.1 Background, ISO 42024 ## Published contents Contents1 Scope2 Normative references3 Terms and definitions4 Architecture concepts4.1 Overview4.2 Architecture and architecting4.3 Architecture design and solution design4.4 Architecture definition and communication4.5 Stakeholder concerns and architectural aspects4.6 Architecture viewpoints and architecture views4.7 Architecture frameworks and architecture description languages4.8 Architecture descriptions and architecture models4.9 Reference architectures and reference models4.10 Life cycle and life history4.11 Architecting precepts5 Architecting principles5.1 Introduction to the principles5.2 Principles about the purpose of an architecture5.3 Principles about the focus of an architecture5.4 Principles about architecting outcomesTerms 3.2 Architecting concepts 3.2.1 Architecture3.2.2 Architecture feature3.2.3 Architecting3.2.4 Architecting principle3.2.5 Architecture principle3.2.6 Architecture framework3.2.7 Reference architecture3.3 Entity related concepts 3.3.1 Entity of interest3.3.2 Solution entity3.3.3 Environment3.3.4 Context3.3.5 Enterprise3.3.6 System3.3.7 Aspect3.3.8 Dimension3.4 Architecture design concepts 3.4.1 Design (noun)3.4.2 Architecture design3.4.3 Architecture information package3.4.4 Engineering effort3.4.5 Solution design3.4.6 Solution information package3.4.7 Stakeholder3.4.8 Stakeholder perspective3.4.9 Concern3.5 Architecture description concepts 3.5.1 Architecture description3.5.2 Solution description3.5.3 Architecture view3.5.4 Architecture viewpoint3.5.5 Model3.5.6 Metamodel3.5.7 Reference model3.6 Entity life cycle concepts 3.6.1 Life cycle3.6.2 Life cycle phase3.6.3 Life cycle stage3.6.4 Life historyAnnexes A.1 Architecture design and solution related entitiesA.2 Architecture expressed as a set of modelsA.3 Life cycle and life history conceptsA.4 Enterprise and system conceptsA.5 Duality of architectural decomposition and architectural synthesisB.1 BackgroundB.2 Aligning architecture in designB.3 Duality of architectureB.4 Pursuit of opportunities Home / Annex B Annex B, Determining architectural significance of concepts and properties · B.1 # Background The subclause opens Annex B, Determining architectural significance of concepts and properties, with its background. Annex B follows Annex A and addresses the judgement of whether a concept or property is architecturally significant. - annex section, status not stated in the public preview - Annex section - ISO/IEC/IEEE DIS 42024 - Last updated: 2026-10-21 ## What this unit settles The existence of Annex B is itself the public evidence that significance is a judgement the document expects a practice to make and record. A firm that treats every design decision as architecturally significant has no priority; a firm that treats none as significant has no architecture governance. ## What to do in your practice Write the significance criteria the firm will use: value, whole entity reach, endurance and cost of reversal. Test them on recent decisions and record the outcome. Publish the criteria with the decision process. Publish the criteria and the classification of the last twenty decisions together. The pairing lets a reader test the criteria against real cases, and it turns a philosophical argument about significance into a calibration exercise the practice can repeat each year. ## Who it binds The architecture practice, as a note. The public preview does not state the annex status, so this page does not claim one. ## Evidence an auditor or regulator asks for - The significance criteria and their tests. An auditor asks how a decision was judged significant. - A sample of decisions classified against the criteria. Proves the criteria are applied. - The record of decisions escalated and not escalated. Shows the filter works both ways. - The review date. Keeps the criteria current. Ask your teamWhat test does this firm use to decide that a design decision is architecturally significant? ## Common gaps this page catches - Every decision is escalated, so the architecture board is a bottleneck. - No criteria exist, so significance is political. - The filter is applied inconsistently across teams. ## What to prepare before publication Write the criteria and test them on the last twenty decisions. Record the classification. Adjust the criteria where the result is implausible, not the decisions. ## Common questions What does Background mean in ISO 42024? The subclause opens Annex B, Determining architectural significance of concepts and properties, with its background. Annex B follows Annex A and addresses the judgement of whether a concept or property is architecturally significant. What evidence should we keep for B.1? The significance criteria and their tests. A sample of decisions classified against the criteria. The record of decisions escalated and not escalated. ## Related units - 3.2.2 - 3.4.2 - B.2 Source. ISO/IEC/IEEE DIS 42024, Annex B.1, published contents. Open the official record. Retrieved 21 October 2026. https://www.iso.org/obp/ui/en/#iso:std:iso-iec-ieee:42024:dis:ed-1:v1:en ISO catalogue record 87510, the status, stage and page count. Claim level: annex section, status not stated in the public preview. The annex title and subclause title are in the public preview. The body text is not public. Last updated: 2026-10-21 · Markdown version · Check your practice Source: https://iso-42024-revision-checker.theartofservice.com/annex-b/background/