The main objectives of this paper are: presenting the interface solutions for e-learning (the state of the art) highlighting their trends, threads and threats and explaining the ethical potentiometer concept and why and how it is used in relation with e-learning interfaces. The related work followed three main targets: anthropocentric interfaces, captology and pathematic agents. Some of the work on this subject covered general aspects of agents in interfacing and more particular on their ethical features. The latest paper on this subject dealt with the feature of an interface agent to have human-like appearance which to make it more emphatically. The authors proposed also an experimental model designed as a virtual tutor and they also presented a comparison between the cartoon-like agents of Microsoft and other companies and this one. The approach must by anthropocentric. The designing of such interface agents must involve a transdisciplinary team guided by specialists of the application domain (first of all methodologists and educational psychologists but depending on the problem also specialists from specific curricula). The nature of the experimental model at this point does not permit drawing clear cut conclusions as regards end user evaluations, but the approach based on such interfaces is in the current trends of the artificial intelligence and modern IT.
