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.
      To update an application,
      follow these steps: