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](<a href=“http://www.usnews.com/articles/education/worlds-best-colleges/2008/11/20/worlds-best-colleges-top-engineering-and-it-universities.html]World’s”>http://www.usnews.com/articles/education/worlds-best-colleges/2008/11/20/worlds-best-colleges-top-engineering-and-it-universities.html)</p>

<p>[Best</a> Undergraduate Engineering Programs - Best Colleges - Education - US News and World Report](<a href=“http://colleges.usnews.rankingsandreviews.com/college/spec-doct-engineering]Best”>http://colleges.usnews.rankingsandreviews.com/college/spec-doct-engineering)</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>