Maintaining high data quality and managing schema evolution in streaming pipelines requires a proactive approach:

• Schema enforcement: Use a schema registry to validate and version events (e.g., with Snowplow’s Iglu).
• Real-time validation: Catch and reject malformed events before they enter downstream systems.
• Flexible schema evolution: Design schemas that allow optional fields and backward compatibility.
  
  

Snowplow enforces strong schema validation and supports controlled schema evolution, ensuring consistent, reliable data streams.