Data Catalog & Schema Model and the Party Model.
Data SLA: SLA's should be predetermined by the data provider based on the average time it takes for the pipeline to process the necessary data and make it available at a drop point plus some buffer time for the outliers. A customer then agrees upon the SLA or make a request for a modified SLA. Modifying the SLA may require new development or tuning of the pipeline.
Data SLA Landing Locations: SLA's also includes one or more drop locations on a specific reoccurring schedule.
Please see (Baseline Conceptual Models Commentary) for further details on what conceptual models are to be used for.