Decoupling

Decouple Overload with SQS Trade-offs | SAA-C03

10 January 2026·1087 words·6 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix Amazon SQS Decoupling API Gateway Auto Scaling

When migrating a multi-tier application to AWS, choosing between synchronous scaling and asynchronous decoupling determines both operational efficiency and long-term TCO. This drill explores why queue-based architectures win for resilience.

Decouple SaaS Ingestion for Ops Efficiency | SAA-C03

28 December 2025·983 words·5 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix Amazon AppFlow EventBridge S3 SNS Decoupling

A retail analytics startup struggles with EC2 performance bottlenecks during multi-SaaS data ingestion. This drill explores the trade-off between managed integration services, event-driven architectures, and operational overhead.

High-Throughput Ingestion Decoupling | SAA-C03

27 December 2025·1005 words·5 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix Kinesis Data Streams Lambda DynamoDB Decoupling Event-Driven Architecture

When facing 100,000 messages per second with dozens of downstream consumers, this drill explores why streaming architecture fundamentally outperforms batch processing for real-time decoupling.

Decouple Lambda Writes With SQS Buffer | SAA-C03

25 December 2025·899 words·5 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix Lambda SQS Aurora Decoupling Scalability

When Lambda quota limits block scalability, the solution isn’t always more compute—it’s architectural decoupling. Learn why SQS-based buffering beats refactoring to EC2 or switching databases.

Decouple Workers with SQS vs Direct Calls | SAA-C03

20 December 2025·937 words·5 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix Amazon SQS Auto Scaling Decoupling Elasticity

Modernizing a legacy master-worker application requires eliminating single points of failure. This drill explores why queue-based decoupling with demand-driven autoscaling beats scheduled scaling and monolithic coordination patterns.

SNS+SQS vs Kinesis for Fanout | SAA-C03

18 December 2025·994 words·5 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix SNS SQS Kinesis Decoupling Event-Driven Architecture

When faced with extreme message volume spikes (100K msg/sec) and dozens of independent consumers, choosing between SNS+SQS fan-out, Kinesis streams, and autoscaling patterns determines both scalability and cost efficiency.