In large scale business intergration platforms/apps, you have operational systems like SAP and and Oracle Service Cloud generate/stream raw or business events which are published to message brokers in topics ( orders, incidents, suppliers, logistics, etc). There the data is published , validated, transformed (filtered, routed, formatted, enriched, aggregated, etc) into other downstream topics which can be used to egress to other apps or enterprise data stores/data lakes. Data governance apps control who has access. Elastic search or Splunk for data lineage and debugging. you also have sbservability systems sandwiched in there as well.