- Hewlett-Packard Printer User Guide

Using the Integration Capabilities of the VPO Motif-based GUI
Integrating External Applications into the VPO GUI
Chapter 3 149
Advantages Gained by Integrating VPO Applications
It is recommended to incorporate an application as a VPO Application for
the following reasons:
❏ The Application Desktop is the main place for applications that
belong to the operators working environment and responsibilities.
❏ Many applications can be easily maintained and accessed by way of
icons and application groups in the Application Desktop.
❏ VPO applications can run on remote nodes without the need to
specify or transmit passwords over the network, or maintain .rhost
files, which is not the case for OV applications. The action agents of
the target nodes are informed via RPC and switch locally to the
configured user.
❏ All information about the application is contained in the central VPO
database and can be downloaded using the administrator’s GUI. It is
not necessary to add an ARF file to an integration package containing
the downloaded information, simplifying the process of building
integration packages and making it less prone to errors.
❏ All information about an application can be accessed and edited using
the VPO GUI. If a new VPO application is configured, the
configuration information is immediately checked and the VPO
application can be tested by the administrator. In contrast, when
configuring OV applications, an ARF file has to be written that may
contain syntax- or semantic errors and only takes effect at the next
startup of the user interface.
❏ VPO applications allow a VPO user to change the parameters of the
application in a controlled way using the customized startup facility.