This paper presents experiences from the implementation of CAD/CAM/CAE
/FEM in different companies in Denmark and attempts to relate these ex
periences to better usage of these software tools in the future. These
experiences do not relate to the mathematics of FEM, but to the reaso
ns why FEM usage has not become as widespread as imagined twenty-five
years ago: reasons like the 'knowledge gap', lack of necessary simplif
ication and lack of proper strategies. The 'knowledge gap' is defined
here as the difference between the world of academia and CAE/FEM suppl
iers and the realities of the users; the difference between the everyd
ay problems of the designer or engineer and what is presumed to be bas
ic and already solved. This paper focuses on the reasons why FEM and o
ther computer technological advances have not meant the predicted impr
ovements, especially in product development efficiency, and it may sca
re potential users. This is not the purpose, since these tools are and
will be important to achieve better product development in the future
.