IEC SRD 63235:2021提供了一个整体的系统体系方法，为智能城市系统概念构建提供视图、方法框架、原则、流程、规则和评估标准。虽然它没有具体说明智能城市系统的定义，但它提供了一种基于系统方法的方法，用于协调、合作和连接包括IEC、ISO和ITU在内的术语来源。该方法在智能城市系统的生命周期、场景和用例的各个维度、领域和层面上，培养了对智能城市系统的多维系统观，支持智能城市系统安排、活动和人工制品的可持续发展，实现全球范围内人、过程和生产力的融合。

IEC SRD 63235:2021 provides a holistic system of systems approach to provide views, methodology framework, principles, processes, rules, and evaluation criteria for smart city system concepts building. While it does not specify the definitions of a smart city system, it provides a methodology based on system approaches for coordination, cooperation and connectivity of the terminology sources including IEC, ISO and ITU. The methodology fosters a multi-dimensional system of systems view on smart city systems across dimensions, domains and layers along the lifecycle of a smart city system, scenarios and use cases, supporting the sustainable development of smart city system arrangements, activities and artefacts, convergence of people, process and productivity globally.