Published April 6th, 2004 by Jim O'Halloran
Using Yum to update Fedora
Linux Gazette has an excellent article on using Yum to update Fedora packages. Very easy to read into to the topic.
Yum is an automatic updater and package management tool for rpm based systems. Yum automatically computes dependencies and figures out what steps need to occur in order to install packages. It makes it much easier to maintain groups of machines without having to manually update each one using rpm.