OpenERP is a complete business application suite. It covers CRM, accounting (analytic and financial), production management (MRP), stock management, sales and purchases management, task automation, marketing campaigns, help desk, POS, and more. Technical features include a distributed server, flexible workflows, an object database, a dynamic GUI, an XML-RPC interface, and customizable reports.
BusinessTools (business_tools) is a Python package for the handling and validation of commonly used business transaction events such as validating Finnish business IDs or generating bank transfer reference numbers. It supports Finnish company IDs, Finnish bank transfer reference numbers, Finnish bank account numbers (BBAN), and international bank account numbers (IBAN).
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.