QOF (Query Object Framework), provides a set of C Language utilities for performing generic structured complex queries on a set of data held by a set of C/C++ objects. This framework is unique in that it does not require SQL or any database at all to perform the query. Thus, it allows programmers to add query support to their applications without having to hook into an SQL database.
Wiaflos Accounting is an attempt to create a multi-platform server-client based accounting system. The goal is to have a central accounting engine which can either run on a dedicated server or on the same PC as the client interface. A SOAP API allows for the easy writing of GUI or Web interfaces or for tying into in-house systems. It is intended to be useful for everyone from single-person organizations to multinational corporate entities.
AutoAbacus is a powerful equation solving library that finds solutions to equation sets. Equations are passed to AutoAbacus as text, and the program attempts to find a solution that satisfies all constraints. The equations can be linear or polynomial, and can include arbitrary functions. By profiling the types of equations in the system and their dependencies on each other, AutoAbacus uses appropriate solution methods to solve individual subsets of equations. Applications range from use in a business rules engine to solving engineering equation systems.
libgeier is a library to send gathered tax declarations data to the German inland revenue offices (using the Elster2/Coala-approach). It is capable of validating, encrypting, digitally signing, and sending the data, which has to be supplied as an XML tree. It can generate transmission protocols for you. A small command line client is included.
Advanced Graph and Chart Collection allows you to add powerful reporting features to your Web or intranet pages and applications. The advanced graphing package allows you to quickly add impressive dynamic charting capabilities. Its powerful components provide both client and server side solutions for adding graphs and charts into Web or intranet pages and applications. It enables Web authors and Java developers to easily build and publish dynamic interactive graphs and charts.