How to insert "placeholder" in my documentation

Hi all !

First of all i want to say that i'mnew to dockook. It's cool stuff, now
i'm working on my master theses and there i have to generate my
documentation with docbook.

My problem now is, that in my docu , there must be some "placeholder" in
the text, which are filled with a certain property at compile time.

These variable fields are something like the name of the customer, or
the logo of the customer and so on ...

I have a .propertie file wher all my variables are stored. Now i have to
bring them "into" my docbook docu.

A lot of variable things i solved with profiling attributes. But such a
thing like placeholders i couldn't find up to now.

Whats the best way to do this ?

Thanks for help !

~manuel