Core Properties

Core properties enable users to get and set well-known and common sets of property metadata within packages. The core properties and the Standard that describes them are shown in Table 10–1, “Core properties”. The namespace for the properties in this table in the Open Packaging Conventions domain are defined in Annex F, “Standard Namespaces and Content Types.”

Core property elements are non-repeatable. They may be empty or omitted. The Core Properties Part may be omitted if no core properties are present.

Table 1. 10–1. Core properties
Property	Domain	Description
category	Open Packaging Conventions	A categorization of the content of this package. example:
contentStatus	Open Packaging Conventions	The status of the content. example: : Values might include “Draft”, “Reviewed”, and “Final”.
contentType	Open Packaging Conventions	The type of content represented, generally defined by a specific use and intended audience. example: : Values might include “Whitepaper”, “Security Bulletin”, and “Exam”. Note:
created	Dublin Core	Date of creation of the resource.
creator	Dublin Core	An entity primarily responsible for making the content of the resource.
description	Dublin Core	An explanation of the content of the resource. example: : Values might include an abstract, table of contents, reference to a graphical representation of content, and a free-text account of the content.
identifier	Dublin Core	An unambiguous reference to the resource within a given context.
keywords	Open Packaging Conventions	A delimited set of keywords to support searching and indexing. This is typically a list of terms that are not available elsewhere in the properties.
language	Dublin Core	The language of the intellectual content of the resource. Note: : IETF RFC 3066 provides guidance on encoding to represent languages.
lastModifiedBy	Open Packaging Conventions	The user who performed the last modification. The identification is environment-specific. example: : A name, email address, or employee ID. It is recommended that this value be as concise as possible.
lastPrinted	Open Packaging Conventions	The date and time of the last printing.
modified	Dublin Core	Date on which the resource was changed.
revision	Open Packaging Conventions	The revision number. example: This value might indicate the number of saves or revisions, provided the application updates it after each revision.
subject	Dublin Core	The topic of the content of the resource.
title	Dublin Core	The name given to the resource.
version	Open Packaging Conventions	The version number. This value is set by the user or by the application.