When you update an application, you can specify that WebLogic Server redeploy the original archive file or exploded directory, or you can specify that WebLogic Server deploy a new archive file in place of the original one. You can also change the deployment plan that is associated with the application.
Update an application if you have made changes to the application and you want to make the changes available to WebLogic Server clients, if you have made changes to the deployment plan, or if you want to redeploy an entirely new archive file in a new location.
A table in the right pane displays all deployed enterprise applications and application modules.