Quality Center is TD on steroids! QC uses TD 8.0 and above. QC can be hosted on other OS's besides Windows, like Linux. The screens are a little more user friendly, or so Mercury says, but they look a bit different. The Front-end is Java based and thus allows more customization. QC also brings in to play "Business Process Testing, and a Dashboard, (which is yet to be very useful but has possibilities for the future). Other than that, they are the same.
Success is the ability to go from one failure to another with no loss of enthusiasm.
~ Winston Churchill ~