We supported the T-Systems development team for the educational sector in a complex software redesign-project. To identify the milestones for the further development of a multi-user web portal for students and teachers we organized brainstorming workshops with all involved parties. We used the results for a detailed usability optimization study and the redesign of the existing portal. The new website features collaborations tools as well as library functions for teaching material of all kinds. Our team created the new screen design and coordinates the programming of the complex portal.