(C) 2003 National Library of New Zealand This file is the XML Schema for the preservation metadata data dictionary. Controller: Dave Thompson, NLNZ Controller: Brian Cleaver, NLNZ Author: Nic Evans, Sytec Resources Ltd This data dictionary defines the preservation metadata fields from a design or implementation perspective. The dictionary is based on the logical preservation metadata model (Version 2) and maintains the overall structure and data relationships contained there. Individual fields however have been adjusted to facilitate their population with readily available structured data that conforms to recognized standards. In some instances this has resulted in the logically defined fields being split into subfields to enable multiple dimensions or sub elements to be recorded. Entity 1: the object is the highest level element of the schema, everything is related in some way to the object. An internal identifier assigned to digital objects within NLNZ. This is a non-intelligent numeric number allocated sequentially to digital objects. Plain text name given to material by the creator/curator/selector and used to identify the object for users. Reference number or identification number used as the object identifier by the Library’s core bibliographic/description or collection management applications. An indicator showing whether a digital original exists for this object. A published international identifier for digital objects. For identifiers assigned by NLNZ, this incorporates the Object Identifier. The date when the first Preservation Master for this object was created. A classification of the object based on the relationships between the files that make it up. The name of a file, which for complex objects and object groups contains details of the individual files that comprise the object, including the overall directory structure and the hierarchical position of each file. A description of the hardware environment required to access or use the Preservation Master. A description of the software environment required to access or use the Preservation Master. Details of any specialised requirements needed to install or initiate access to the object. Details of any method used to restrict access to the object that may impact on preservation activities. Any systems or methods used to enhance access to the object and needed to be maintained or considered in preservation activities. Any characteristic of the original that may appear as a loss in functionality or change in the look and feel of a Preservation Master. The name(s) of the individual, business unit and/or agency responsible for the creation of this preservation metadata information. Date that preservation metadata was first collected for this object. An object will contain a combination of the following items. Entity 2: Process describes a process by which the object was created A classification of a preservation processes. Description of the process carried out. The reason why this Process has been undertaken. The individual(s), business unit and / or agency that carried out the process. The individual(s), business unit and / or agency who approved the process. The date when permission was given to perform the process. A description of any noteworthy hardware used in performing the process. A description of any noteworthy software used in performing the process. A description of the actions performed to initiate and complete the process. A description of an individual action performed to complete a step in the process. The Sequence number for the step - to maintain order The outcomes of the process where these are worth being recorded. Can include confirmation of intended changes or highlighting of unexpected outcomes. Any standards or procedures used when performing the process. The date and time the process was completed. Any other matter of relevance to preservation involved in the process. Entity 4: Any modification made to the object is documented here The name of the person who made this modification to the preservation metadata record. It is anticipated that this information will be obtained from the logon Id of the individual initiating the change. This logon Id will be expanded to the persons name before being stored in this data field. The date and time that this change to the preservation metadata information was completed. Identification of the field the modification was made to. A record of the preservation metadata content prior to being modified. If a free text field is modified, the entire text, prior to modification will be recorded. Entity 3 may also be a colection (or tree) of nested files and folders - like a file system.