If you are writing application-specific help that uses IDs to access particular help topics, there are two ways to verify that the IDs have been properly established within the help volume:
Run your application and request help just as a user will, trying each of the entry points. This also verifies that the application is using the correct IDs.
If your application is not ready to use (still under development), you can test each ID by running dthelpview for each ID:
dthelpview -helpVolume volume.sdl -locationId id
Where id is the location ID that you want to test. If dthelpview displays the correct topic, then the ID is okay.