1. Introduction

In this document, the internal, universal document model of the UGH library is first briefly outlined and then the general configuration and the individual serialization formats are discussed.

The source code of the UGH library can be found at the following URL

https://github.com/intranda/ugh

The name of the UGH Library is derived from a sound made by the librarian (an orangutan) of the Invisible University in Terry Pratchett's Discworld cycle - in the German translation. A separate article in Wikipedia is dedicated to this cycle:

http://de.wikipedia.org/wiki/Figuren_und_Schaupl%C3%A4tze_der_Scheibenwelt-Romane#Der_Bibliothekar