You have the following Azure Data Factory pipelines:

• Ingest Data from System1
• Ingest Data from System2
• Populate Dimensions
• Populate Facts

Ingest Data from System1 and Ingest Data from System2 have no dependencies on each other. Populate Dimensions must execute after both Ingest Data from System1 and Ingest Data from System2 complete. Populate Facts must execute after Populate Dimensions completes. All pipelines must execute every eight hours.

What should you do to schedule the pipelines for execution?