
Metadata.

Data Ingestion , Metadata , Metadata Driven Approach
The Key to Successful Data Ingestion: A Metadata-Driven Approach
By Anand Agrawal

Amazon S3 , Auto-Tagging , AWS , AWS Lambda , Cloud , Data Lake , Dynamo DB , Metadata
Auto-Tagging data in Data Lake on AWS
By Pranjal Dhanotia