ITU‐T's Technical Reports and Specifications 673 Table 1 – Elements of the integrated smart sustainable cities management model service interface specification Interface specification name Operation type Operation name Operation definition Mandatory or not Model service interface specification of the integrated management for smart sustainable cities Core operations GetCapabilities Provides access to metadata and detailed information about the models available by a model server. Yes DescribeModel Enables querying of metadata about the models and model chains available by a model server. Yes ExecuteModel Provides the execution of models. Yes Transactional operations InsertModel Allows registration of new models at the model server. No DeleteModel Allows the deletion of registered models and all their associated algorithms. No UpdateModel Allows the update of model parameters and functions. No Enhanced operations GetFieldOfInterest Provides access to models from a model service by passing only the field of interest of a user. No GetModelByFunction Provides access to models from a model service by passing only the expected function of a user. No