QS World University Rankings is an annual publication of university rankings by Quacquarelli Symonds (QS). Previously known as Times Higher Education–QS World University Rankings, the publisher had collaborated with Times Higher Education magazine (THE) to publish its international league tables from 2004 to 2009 before both started to announce their own versions. QS then chose to continue using the pre-existing methodology while Times Higher Education adopted a new methodology to create their rankings.
The QS system now comprises the global overall and subject rankings (which name the world's top universities for the study of 48 different subjects and five composite faculty areas), alongside five independent regional tables (Asia, Latin America, Emerging Europe and Central Asia, the Arab Region, and BRICS).
Being the only international ranking to have received International Ranking Expert Group (IREG) approval, the QS ranking is viewed as one of the three most-widely read university rankings in the world, along with Academic Ranking of World Universities and Times Higher Education World University Rankings. However, it has been criticized for its over reliance on subjective indicators and reputation surveys, which tend to fluctuate over the years. Concern also exists regarding the global consistency and integrity of the data used to generate QS ranking results.https://en.wikipedia.org/wiki/QS_World_University_Rankings