Teaching the design of basic systems is a fundamental and difficult part of an electronic course. Due to the number of components, the interaction between blocks, perturbations and performances become critical constraints here. This paper describes a methodology and an hypermedia solution developed at the LEG -EPFL (Electronics Laboratory of the Swiss Federal Institute of Technology). This solution assimilated to a virtual lab shows a good complementarity with traditionnal methods. The difficulties of such a project will be presented and a first feed-back will be analyzed.
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