A system may use metadata to identify and extract specific upstream data, provision data batches, and provide dynamic downstream data access. Workflow data is received by the system from a business process management application and modeled for downstream use. Use of a data staging engine includes utilization of a metadata repository that assists with the extraction, organization, transformation and loading of workflow data from a proprietary format to a modeled relational format. A self-service batch provisioning tool enables users and applications to request and receive batch payloads in an automated fashion. Users are presented with a graphical interface for submitting authorization credentials and justifications for workflow data request. Scope of accessible workflow data based on user-provided credentials and justifications are presented via the graphical interface and allow the user to select specific data subcategories for batch provisioning.