Conceptualization and implementation of computer supported teaching and training is currently not tailored to the paradigm of learner centration. Many technical solutions lack transparency and consistency regarding the supported learner activities. An insight into learners activities correlated to learning tasks is needed. In this paper we outline recent developments in university's higher education concepts. We introduce InterLect as a tool to observe student's activities in lecture content acquisition and describe first insights and questions derived using this tool in a lecture scenario. Based on a new understanding of activity transformation cycles, an elaborated didactical design is modeled, which allows to address and observe learning activities. Ideas for a valid evaluation process are derived in order to investigate efficiency of the digital tool within the didactical framework. [For the full proceedings, see ED562093.]