social, product catalog, customer preferences Document Content management, personalization, mobile In-memory Leaderboards, real-time analytics, caching Graph Fraud detection, social networking, recommendation engine Time-series IoT applications, event tracking Ledger Systems of record, supply chain, health care, registrations, financial Aurora, RDS DynamoDB Cassandra DocumentDB ElastiCache Neptune Timestream QLDB Analitics RedShift EMR Athena BigData Analitics