These choices should be used in German-speaking countries.
When using German intended for English-speaking countries, one should select an English UEB Template, applying the German style on German text.
The German language (in German-speaking countries) has multiple DBT Templates:
German braille is usually contracted. For that use German - basic. German Vollschrift is a system of lightly contracted braille that is almost uncontracted. It is used, but rarely. Use uncontracted German if that is what you want.
For the details about the DBT translator used by German: click here.
German is usually produced in contracted braille. This means that words are not produced in braille on a one-for-one basis. There are abbreviations or contractions in the text. If you have questions about how braille is produced, please contact a member of the relevant braille authority.
Sometimes, you may want to produce uncontracted braille. This is easy to do with DBT. Before translation into braille, go to the top of the document in DBT, and press Alt-1. When you translate into braille, the braille will be uncontracted