CEPIAH is a method and a proposal for a Web-based system to be used to assist teachers in designing multimedia documents and in evaluating their prototypes. The proposed tool integrates two modules: one for the Evaluation of Multimedia Pedagogical and Interactive software (EMPI), and the other, a method for designing pedagogical hypermedia (SP/UL/FC). The two modules are presented along with applications of distance teaching (and distance learning) and with comments about the first results of this experiment. A short presentation of a third module serves as a conclusion.