ISO 8000-115:2018 specifies the requirements for the quality identifiers that form part of an exchange of master data. These requirements supplement those of ISO 8000-110.The following are within the scope of ISO 8000-115:2018:+ the syntax and semantics of quality identifiers to allow the unambiguous identification of the owner of the identifier and any restrictions on the use of the identifier;+ the principles of resolving quality identifiers to the data set they represent;+ the characteristics that define quality identifiers.The following are outside the scope of ISO 8000-115:2018:+ the methods used for the creation of identifiers;+ the syntax of the query and of the response used in the resolution of identifiers;+ the methods used for the resolution of identifiers.