If you are using Local access method and deploying to local z/os environment, once you have the archive file built, upload it to the USS file system using file transfer method.
Watch this video to learn how application is deployed and tested
Videos show how to deploy using the database resource adapters. The sample code used for the Insurance use case has been provided. This is a sample server.xml file used for Websphere liberty server that shows database resource adapters being added.