The design, development and testing of a prototype interactive expert system (SEDPA)
capable of diagnosing eel pathologies is described. The system incorporates a multiple
subprogram modular design, although only the inference engine is largely described. Its
user interface incorporates a natural language module. Starting from this kind of information,
the system obtains its conclusions treating this information with a fuzzy controller and
transmitting the uncertainty using the Dempster–Shafer theory (DST). The system's …