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.
Zurmo provides an easy-to-use, easy-to-customize CRM application which can be adapted to any business use case. The authors have taken special care to think through many different use cases and have designed a system which provides a high degree of flexibility, covering a wide variety of cases out of the box.