# Modernization
<a name="modernization-pattern-list"></a>

**Topics**
+ [Automatically archive items to Amazon S3 using DynamoDB TTL](automatically-archive-items-to-amazon-s3-using-dynamodb-ttl.md)
+ [Build a multi-tenant serverless architecture in Amazon OpenSearch Service](build-a-multi-tenant-serverless-architecture-in-amazon-opensearch-service.md)
+ [Deploy multiple-stack applications using AWS CDK with TypeScript](deploy-multiple-stack-applications-using-aws-cdk-with-typescript.md)
+ [Automate deployment of nested applications using AWS SAM](automate-deployment-of-nested-applications-using-aws-sam.md)
+ [Implement SaaS tenant isolation for Amazon S3 by using an AWS Lambda token vending machine](implement-saas-tenant-isolation-for-amazon-s3-by-using-an-aws-lambda-token-vending-machine.md)
+ [Implement the serverless saga pattern by using AWS Step Functions](implement-the-serverless-saga-pattern-by-using-aws-step-functions.md)
+ [Manage on-premises container applications by setting up Amazon ECS Anywhere with the AWS CDK](manage-on-premises-container-applications-by-setting-up-amazon-ecs-anywhere-with-the-aws-cdk.md)
+ [Tenant onboarding in SaaS architecture for the silo model using C\# and AWS CDK](tenant-onboarding-in-saas-architecture-for-the-silo-model-using-c-and-aws-cdk.md)
+ [Decompose monoliths into microservices by using CQRS and event sourcing](decompose-monoliths-into-microservices-by-using-cqrs-and-event-sourcing.md)
+ [More patterns](modernization-more-patterns-pattern-list.md)