Server Reference Guide : Designing and Writing OpenROAD Server Applications : OpenROAD Application Requirements
 
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OpenROAD Application Requirements
An OpenROAD application must meet the following requirements for 4GL procedures to be called remotely through the OpenROAD Server interface. An OpenROAD application must:
Be an application image that is accessible in the installation where the OpenROAD Server runs. See Application Image.
Have a ghost frame as the application's starting component (which can have an empty script). See Ghost Frame.
Be non-interactive, meaning that it must not invoke any graphical user interface (GUI) components. See Non-interactive 4GL Procedures.
Be able to manage state appropriately when used in shared servers. See How You Can Manage State in Private and Shared Servers.
Be prepared to handle any necessary cleanup when notified of a shutdown. See Shutdown Notification.