674 ITU‐T's Technical Reports and Specifications 4 Instances of the integrated management for smart sustainable cities 4.1 Daily management The daily management for smart sustainable cities can be implemented following the steps described herein. Firstly, the access of the monitoring data and processing models of different municipal departments can be achieved by encoding the information resources, like the nodes, sensors, observation data and models, according to the meta‐model proposed in section 3.1. Secondly, by referring to the fusion processing technical specification in section 3.2, the integration of different information resources can be realized, together with a higher level of acquired information. Thirdly, the unified management service interface specification can be employed to issue and share nodes, sensors, models and other information resources. When needed, users can access and obtain the corresponding data or models quickly via the uniform service interfaces. 4.2 Emergency response management The access and integration of all kinds of city monitoring data resources from different departments can be realized by conforming to the theories proposed in this Technical Report. Via the technologies of model representation, registration, combination, and optimization, and combination of the available data resources, the model‐driven data access can be formed with the model selection. The parameters are optimized, and the dual‐directional coupling between the data and the models is formed. By encapsulating the data and models into web services, and linking them with the decision information requirements from different users, and by combining concrete city decision task execution workflows, the active and focused service of a city decision information can be formed. Finally, the typical application of IMSSC will be established, as demonstrated in Figure 18. Figure 18 – Technical roadmap for the typical applications of integrated management intelligent decision in smart cities Aimed at different application topics from multilevel inter‐agency intelligent decisions, such as water leakage, power interruption, gas pipeline leakage and so on, the spatial‐temporal intelligent