Jledger is a Java Business Accounting API that consists of invoicing, general ledger, stock/inventory control, and other business APIs that will assist Java developers in building business software with ease. It will take care of the business logic like accounting double entry, Stock Balance and management (FIFO), etc., and seamlessly integrate each part of business operation as a whole.
SISVENTI is a point of sales system for small businesses. It includes warehouse management, payable accounts, and receivable accounts, a curses-based sales interface, and a Web based administration/operation interface for fast input. Its goal is to offer simplicity and flexibility for any business, without complex processes.