cattaDoc is an open source web-based document and project management solution. It is based on best management practices and focused on practical day-to-day support for project management processes and tasks as defined by PRINCE2 and MSP. You get an overview of all your projects - including portfolios and programmes - in an organisation, their status and phases. You get configuration management, project filing system, project organisation and a basis for project process automation. cattaDoc is available in English and in Danish - and is prepared for translation into other languages as well. New in version 4.0: Project management support based on PRINCE2 and MSP. New in version 4.1: Feature improvements and bug fixes.