Besides being one of the simplest variations proposed for the Latinization of the Persian alphabet, this variation is based on the Alphabetic principle. Based on this principle, each individual speech sound is represented by a single letter and there is a one-to-one correspondence between sounds and the letters that represent them. This principle, besides increasing the clarity of the text and preventing confusion for the reader, is specifically useful for representing the native sounds of the Persian language, for which there are no equivalents in most other languages written in a Latin-based alphabet. For instance, compound letters used in the other variations, such as "kh" and "gh", in addition to "sh" and "zh" are respectively represented by "x", "q", "š" and "ž".