Abstract: Some embodiments include reception of a request for data associated with an object instantiation of a component of a class model representing tag-based data and non-tag-based data, the request including user criteria mapped to a member of the component. Embodiments may also utilize an interface and a configuration to query an operational data source for data associated with data fields, wherein one of the data fields is associated with the member of the component, wherein one field of the configuration is associated with the member of the component, and wherein the one field of the configuration includes the user criteria that is mapped to the member of the component. Moreover, data associated with the data fields may be received from the operational data source and the member of the object instantiation may be populated with data of the one of the data fields associated with the member.