The use of Fortran or other computer models via web interfaces benefits both users and authors. E-AIM, for example, has been used for over a decade by researchers and students to carry out ∼13,000 individual calculations per year.
A short article that we have written for the 78th issue of the newsletter of the Numerical Algorithms Group shows how to read the contents of a web form into a Fortran program, and how the program can write its results to the user's browser. Click here to view the main part of the article, which explains this and gives two examples which are representative of how the E-AIM site works.
We have provided this document to demonstrate how simple it is to implement a web interface (which requires very few additions to the Fortran program that is being called), so that others will be encouraged to try this for themselves.