In addition to data formats and CVs, the PSI has also developed several sets of guidelines. These guidelines typically describe at minimum which pieces of information should be provided when releasing or sharing data, without specifying the encoding for that information. This minimum information may be provided in supplementary material or in an article or in a PSI standard format. PSI standard formats are often designed with the aid of previously-developed guidelines, ensuring that they are capable of capturing at least all of the minimum information and usually much more.