The OASIS Reference Model for SOA, the base standard for Service Oriented Architecture, describes the facets of a service in an abstract manner. Part of the core service model is the "data model" associated with a service. This data can be anything. It may represent data that empowers a platform, software or any other item.
The service model itself is agnostic to what the data represents. This is because the service should not care what the data is. The services only job is to facilitate its consumption. The proliferation of *aaS acronyms must stop unless we are planning to have Everything-as-a-Service or EaaS.