About Data Flow rules

Data flows allow you to sequence and combine data based on various sources, and write the results to a destination. The sequence itself is established through a set of instructions and execution points from source to destination. Source and destination points can be abstract or driven by data sets and other decision data flows. Between source and destination, you can apply compose, convert, and merge strategy execution instructions.

The execution of data flows is done through work items which are instances of Pega-DM-DDF-Work, and stored in the pc_work_dsm_batch table. The processing of data flows can be divided in two categories:

• Batch data flows using a database table as main input.
• Real-time data flows that, in active state, continue processing incoming stream data and requests made through the available service interface.

Data flow runs that are initiated through the Data Flows landing page run in the access group context. These data flows always use the checked-in instance of the Data Flow rule and the referenced rules. You can use a checked-out instance of the Data Flow if you initiate a local data flow run (by using the Run action in the Data Flow rule form) or a test run (a run initiated through the API).

Where referenced

Data flows are referenced by other data flows. You can run data flows by clicking Designer Studio> Decisioning > Decisions > Data Flows.

Access

Use the Application Explorer or Records Explorer to access your application's data flow instances.

Category

Data flow instances are part of the Data Model category. A data flow rule is an instance of Rule-Decision-DDF rule type.

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