Amazon Simple Queue Service (SQS) and Amazon DynamoDB build together a really fast, reliable and scalable layer to receive and process high volumes of messages based on its distributed and high available architecture. We propose a full system that would handle any volume of data or level of throughput, without losing messages or requiring other services to be always available. Also, it enables applications to process messages asynchronously and includes more compute resources based on the number of messages enqueued.
The whole architecture helps applications reach predefined SLAs as we can add more workers to improve the whole performance. In addition, it decreases the total costs because we use new workers briefly and only when they are required.