Primarily this is a console program written in ruby and generate a german form for money transfer from one bank to another and it's a frontend for a PSTricks-Package. It generates a PS or PDF file for printing.
POS# (spoken POS Sharp) is a POS system intentionally written for small companies of up to 10 employees. At the time, POS# is in use by the company it was written for and is very stable. Please feel free to check it out.
FreeSIS is a opensource Salesman Information System
Programm zur Nebenkostenabrechnung für ein Mehrfamilienhaus. Details s. https://sourceforge.net/p/jkhank/wiki/Home/.
A Java API for creating german banking transaction (DTAUS) records.
The goal of Kuckuck is a clean and os-independent java-library for the german electronical tax system "Elster" (http://www.elster.de).
web application to control goods, products, accounting and invoices
opentradesman is a web application based on yii (php) to control goods, products, accounting, invoices and provide interfaces to common databases and structures like taxes, online banking,...
NETOFFICE EIS: CRM/SRM Corporate AddressBook ; iCAL Corporate Calendar + Agenda ; eMSG MailBox Email + Fax Messagery ; DMS FileManager + Document Management ; EXTM ModExpress (modules / extra apps: financial, sales) ; CPanel administration ; Intercha