NOLA provides your company's accounting, inventory, point of sale, contact management, billing, purchasing, and reporting all in one integrated package.
SQL-Ledger is a double entry accounting system. Accounting data is stored in a SQL database server, for the display any text or GUI browser can be used.
GNU Enterprise (GNUe) is a meta-project which is part of the overall GNU Project. GNUe's goal is to develop enterprise-class data-aware applications as Free software. GNUe is itself comprised of several subprojects:
Fisterra is an open source GNOME development framework. It is indicated for the implementation of whole business management applications, ad hoc ERPs or modules of other management systems.