German: <a href="https://www.helpdesk.rrze.uni-erlangen.de/faq/Glossar/Erweiterungspaket">Erweiterungspaket</a><br><br>An add-on package is a <a href="https://www.helpdesk.rrze.uni-erlangen.de/faq/Glossary/Service_Package">service package</a> complementing a <a href="https://www.helpdesk.rrze.uni-erlangen.de/faq/Glossary/Basic_Package">basic service package</a> in one or more functions, or adding new services. Add-on packages can be interdependent, meaning that not all possible combinations are viable.