The document discusses Cerner's use of Amazon Web Services to build a serverless FHIR interface. It describes how Cerner exposed FHIR resources from its EHR system using Amazon API Gateway and AWS Lambda. It provides an example serverless architecture for hosting a FHIR server and details various AWS services used like DynamoDB, S3, Cognito and X-Ray. The document also outlines workshops on building FHIR-enabled healthcare apps using AWS serverless services.