This was a popular trend in the 90s e.g. http://en.wikipedia.org/wiki/Prograph http://en.wikipedia.org/wiki/Prograph Check out the Mactech articles in the refe

This was a popular trend in the 90s e.g. http://en.wikipedia.org/wiki/Prograph http://en.wikipedia.org/wiki/Prograph Check out the Mactech articles in the references. I even wrote a decent size app in prograph. While I really liked it a large code base was really hard to navigate and maintain. Also you couldn't email code snippets around easily.