A set of strings and an associated set of rules that describe a mapping between that set of strings and a set of resources. The mapping rules may define how the string is structured or they may simply enumerate all the strings and the corresponding resources. Source: W3C http://www.w3.org/2000/01/rdf-schema#Datatype Syn. Encoding format The following implementation is an example on how this specific Architecture Building Block (ABB) can be instantiated as a Solution Building Block (SBB): Guidelines for Dublin Core Application Profiles : date and language date: Because we want to perform automated operations like sorting on the date, we can select the Dublin Core property dcterms:date. This property can take a string value. We can indicate that the value string is formatted in accordance with the W3C Date and Time Formats specification by using syntax encoding scheme dcterms:W3CDTF. language: The language needs to be selected from a controlled list. We achieve this by requiring the use of three-letter codes listed in the international standard ISO 639-3 for the representation of names of languages (such as ""eng"" for ""English"") together with the syntax encoding scheme dcterms:ISO639-3 as a datatype. For this, we can use the DCMI property dcterms:language, which can accommodate either an identifier for the language term or a string. http://dublincore.org/documents/profile-guidelines/ https://www.w3.org/TR/NOTE-datetime