Skydrive, Amazon Web services • synchronisation and backup of user generated content only • doesn’t allow to share content between users • doesn’t allow to store anything apart from user generated content • doesn’t implement any business logic
but not flexible • custom back-end (JAVA, .net, PHP etc.): flexible, complex, but expensive & time consuming solutions • back-end based on open source CMS/CMF: powerful, affordable
platforms (works in both traditional and cloud environments) • designed to be secure, reliable and expandable • built on well known and widely used open source technology stack (Linux, Apache, MySQL or PostgreSQL, PHP) • enterprise-ready solution