Can someone interpet these rankings for me?

<p>How is our engineering school ranked 7th in the nation for its undergraduate program, but 38 in the world for it's overall program? Is the undergraduate program that much better?</p>

<p>World's</a> Best Colleges: Top Engineering and IT Universities - US News and World Report</p>

<p>Best</a> Undergraduate Engineering Programs - Best Colleges - Education - US News and World Report</p>

<p>the rankings use different critera...ie in US news michigan is ranked like 26 in US, but in topuniveristies it is 18th in the world</p>