The subject disclosure relates to techniques for providing data experience(s) via disparate semantic annotations based on a respective user scenario. An annotation component can synthesize semantic information for respective data types of data set(s), associate the semantic information with the respective data types to obtain respective data annotations, and in response to receiving a query from a client, send at least a portion of the respective data annotations to the client. Further, a data aggregation component can aggregate the respective data annotations and at least a portion of the data set(s). Other embodiments relate to performing, via an application, operations utilizing a data type based on respective semantic annotations associated with the data type. Yet other embodiments relate to receiving external data annotation(s) and associating the external data annotation(s) with portion(s) of the respective data types to derive portion(s) of the respective semantic annotations.