AHKME?s aim is to provide a system with adaptive characteristics and knowledge management abilities for students and teachers. The development of this system is based on metadata, since the knowledge representation is made through it, and knowledge management of all the information in the platform is done using the descriptive metadata. In this system metadata is used to satisfy the requirements of reusability, interoperability and multipurpose. The system provides authoring tools for teachers to define learning methods with adaptive characteristics, as well as tools to create units of learning allowing users with different roles, promoting both collaborative and group learning of several types. To support knowledge management, the system is endowed with tools to retrieve, import and evaluate learning objects, enabling the possibility of students to use quality educational contents that fit their characteristics. And teachers have the possibility of using and retrieving quality educational contents to structure their courses.