...不知道...

没听过。。。没普及

等普及了就没用了。

是这个？
The U.S. ratings agency Standard & Poor’s (S&P) is taking a number of steps to strengthen its ratings process in the wake of the global credit crunch and resulting stock market turmoil, including working with New York University’s Stern School of Business to develop an in-house certification program for its credit analysts, the Financial Times reported.

Added by Graham Richmond on January 7, 2010

有啥用呢？