This chart seems terribly confused. There is front- and back-end stuff, but not a single webserver is mentioned. Nor is fastcgi. They python track is almost completely about hte language, but eventually splits django, however there is no mention of zope or wsgi. Similarly perl is language specific, no mention of mason. Yet, there is a whole line about rails and not ruby, jsp and java.<p>I understand but am not necessarily convinced about other full stack components as well -- maybe not the db stuff or memcache, but load blancers like varnish, bigip and so on.