Hotel ratings are often used to classify hotels according to their quality. From the initial purpose of informing travellers on basic facilities that can be expected, the objectives of hotel rating have expanded into a focus on the hotel experience as a whole. The terms "grading", "rating", and "classification" are used to generally refer to the same concept.
There is a wide variety of rating schemes used by different organizations around the world. Many have a system involving stars, with a greater number of stars indicating greater luxury. Forbes Travel Guide, formerly Mobil Travel Guide, launched its star rating system in 1958. The AAA and their affiliated bodies use diamonds instead of stars to express hotel and restaurant rating levels.