368 ITU‐T's Technical Reports and Specifications Figure 11 – Components analysis for a smart sustainable city 8 Guidelines for the SSC ICT architecture These guidelines provide with specifications the SSC ICT architecture regarding the following aspects: Security and Privacy requirements: they are specified under the corresponding [ITU SSC‐0090] Technical Report on Smart Sustainable City Cybersecurity, data protection and cyber resilience in smart sustainable cities Quality requirements: these are the minimum set of quality requirements have to be specified for each SSC ICT architecture's subsystem and for the overall architecture performance. Section 5.1.4 defined a set of principles for the SSC ICT architecture, some of which are totally quality‐based (i.e., manageability, fault‐tolerance, scalability, etc.) Guides for each subsystem: the above modular analysis returns the complex nexus of a SSC. However, most of the architecture components can be standardized and the assignment of standards to these components is presented in the following (Table 2):