Main element of the BWN metadata standard. Covers all possible elements to define. The version of BWMETA format. Basic enumeration of contributor roles. No restrictions until a stable set of roles is worked out. Type of relation. No restrictions until a stable set of relations is worked out. Primary identifier of entities in the model. Each exportable entity contains a unique extId. List of extIds. Basic enumeration of acceptable hash methods: "MD5", "SHA1" or "SHA256". List of languages. Basic enumeration: "URI" or "URL". Version information as well as 'deleted' or 'merged' flag. Version regexp: [0-9]+(D|M(.+))? 'D' stands for deleted, 'M' for merged and everything after letter 'M' is id of object to which this object should be merged. Basic enumeration: "yes" or "no". Definition of access to the metadata. In the future this entry might be extended by parameters. List of license identifiers. Address information for institution or person. If yes then this is the default address. Street with numbers. City. Post location. Post code. Country. Contributor's affiliation to institution or other person. Type of affiliation - textual description if appropriate. Container to hold foreign tagged metadata. Acceptable keys: bibliographical.description Category list for this element. List of categories' extIds. Cite reference definition. Can include information about element's identifiers. Used to determine position among other cites; cites are sorted according to index (in lexicographical order); standard notation is: 01 for the first index, 02 for the second and so on. Cite value. Optional URL that this cite points to. Contact information definition for institution or person Type of the contact (email, www, gg, ims, ..) Each element might consist of many parts. Each part can have multiple locations. contents is definition of one part. Index of this content (if important). Type of content. Contributor to the element. Contributor's role in the contribution. Contributor's title (regardless person or institution) - text that should be included in citing. Textual data used to sort contributors. Date connected with the element. Simplified format ISO 8601 (YYYY-MM-DD, YYYY-MM, YYYY). Type of date, for example: created, published, printed, issued, validated, received, accepted. Single element description. Language in which the description is written. Flag indicating that this is a default description when there is no language. Reference to an entity with extId. ExtId of the referenced entity. Content format. MIME type of the content. Size of the file in bytes. Document's full text location. This element is considered faulty but for the moment of writing this revision there is no valid substitute for it. So let it be. Fulltext's language. Hierarchy definition. id or element-ref is the reference to parent element. Hierarchy-class identifier - only for clarity. If it provided then level->class==class otherwise it will be considered errornuous metadata. Level identifier. List of XML elements that should be inherited from parent. Title. Proposal of hierarchy (often available but not final). ExtId of class of hierarchy. Single level in hierarchy-dump hint. Optional index of level in the hierarchy. Optional name of level. Title of this level. Element's identifier - must have an id-class defined. Reference to id-class' id definition. WARNING: IT IS FORBIDDEN TO USE ID WITHOUT CLASS. For consistency reasons class is marked as optional but it may be absent only in internal XML documents. Single keyword. Index class - parametrization for the keyword. A short term extension to the standard keyword. In the future more flexible model should be developed. Keywords of the element. Keywords' language. Location's address. Type of the address. If "yes" then the location describes a remote location otherwise the data is accessible locally. Single element's part single location. Name of the data for the viewers. List of licenses under which this part from this location is accessible. Generic purpose element for localized short descriptions. Language in which the name is written. Flag indicating that this is a default name when there is no language. Generic notes for the element. Doesn't need to be connected with content. Language of notes. If not defined then element's default language is used. Container to hold foreign tagged metadata. Position inside the parent level. Position value. Range of this element inside parent. Starting number. Ending number. References to other bibliographical elements. List of elements with wich this element is in relation (one of a type). Relation's direction is defined by the type of it. Type of relation. Particular part's signature. Type of the signature. Summary in different languages. Language of abstract. If not defined then element's default language is used. Category definition within given categorization. Id of category-class to which belongs this category. This is required for categories not inside category-class. Category's short keyword for presentation purposes. Category's identifier. Upper category - allows categories to create DAG. Version information. Categorization definition. Categorization identifier. Identifier of owner - either person or institution should be extid. Version information. Single element description. Default elements language. If element is created in multiple languages all can be named here separated by space - first is the default. Optional identifier of the element. Elements format - if applicable Version information. Definition of the hierarchy of elements. Hierarchy class identifier. Identifier of owner - either person or institution - should be extId. Version information. Definition of the identifier class. Identifier class' identifier. Owner's identifier. Must refer to id of person or institution. Version information. Definition of institution. It can be used inside the contributors list, as an owner of some entity. Identifier of the institution for the sake of this document. Possible upper institution. Together with partof defines sections of institutions, without partof defines type of institution. Version information. Hierarchy level description. Identifier for the level. Code of the level - something that we show to administrator. Id of hierarchy-class to which belongs this level this is required for levels not inside hierarchy-class. Reference to the id of higher level - allows nontrivial graphs of hierarchy. Version information. License description. It is possible, that in the future licenses will be parametrized and provide inheritance. License's identifier. License's owner - must refer to identifier of person or institution. Version information. Definition of a person to be used as an owner of entity or contributor. Person's identifier. Person's surname. First name of person. List of middle names or initials. Ancestry indication (Jr.; Sr.; I; II...) Version information.