An indication (free text or formalised) of the strength(s) of the collection.

A statement of any access restrictions placed on the collection, including allowed users, charges, etc.

A statement of accrual policy (closed, passive, active, partial/selective), accrual method (purchase, deposit)) and accrual periodicity (closed, irregular, periodic).

A statement of the legal status of the collection.

A statement of any changes in ownership and custody of the collection that are significant for its authenticity, integrity and interpretation.

The identifier for the physical or online (digital) location of the collection.

An object name associated with the items in the collection.

A personal or corporate name associated with the items in the collection.

If no scheme is used, enter personal names, where possible, surname first followed by a comma and the elements of the name that usually precede the entry element.

Enter corporate names in direct form.

For more precise rules see AACR2 chapters 20-24.

The range of dates over which the collection was accumulated.

Enter a date range - two dates separated by a forward-slash (/). Each date should be entered according to the W3C note on 'Date and Time Formats', <http://www.w3.org/TR/NOTE-datetime>. Null dates may be used to indicate open-ended date ranges.

All the following are examples of valid date ranges:

1888/1894
1960/
2000-02/2000-06

indicating, '1888 to 1894 inclusive', '1960 onwards' and 'February 2000 to June 2000 inclusive' respectively.

The range of dates of the individual items within the collection.

Enter a date range - two dates separated by a forward-slash (/). Each date should be entered according to the W3C note on 'Date and Time Formats', <http://www.w3.org/TR/NOTE-datetime>. Null dates may be used to indicate open-ended date ranges.

All the following are examples of valid date ranges:

1888/1894
1960/
2000-02/2000-06

indicating, '1888 to 1894 inclusive', '1960 onwards' and 'February 2000 to June 2000 inclusive' respectively.

An agent who has legal possession of the collection.

The identifier or name of a second collection that describes the current collection (for example, the catalogue for the current collection).

Enter the name or identifier of the collection referred to.

If a name is entered, the data entry guidelines for collection names should be followed.

If a URI is entered, it should be fully specified, for example:

http://memory.loc.gov/ammem/afctshtml/tshome.html
urn:x-cld:950615195-30859

The identifier or name of a second collection that is described by the current collection.

Enter the name or identifier of the collection referred to.

If a name is entered, the data entry guidelines for collection names should be followed.

If a URI is entered, it should be fully specified, for example:

http://memory.loc.gov/ammem/afctshtml/tshome.html
urn:x-cld:950615195-30859

The identifier or name of a second collection that is associated by provenance with the current collection.

Enter the name or identifier of the collection referred to.

If a name is entered, the data entry guidelines for collection names should be followed.

If a URI is entered, it should be fully specified, for example:

http://memory.loc.gov/ammem/afctshtml/tshome.html
urn:x-cld:950615195-30859

The identifier or name of a publication that is based on the use, study, or analysis of the collection.

Uniform Resource Identifier.

Internet RFC 3066 'Tags for the Identification of Languages' specifies a primary subtag which is a two-letter code taken from ISO 639 part 1 or a three-letter code taken from ISO 639 part 2, followed optionally by a two-letter country code taken from ISO 3166. When a language in ISO 639 has both a two-letter and three-letter code, use the two-letter code; when it has only a three-letter code, use the three-letter code. This RFC replaces RFC 1766.

ISO 639-2: Codes for the representation of names of languages.

Library of Congress Subject Headings.

Library of Congress Classification.

Medical Subject Headings.

Dewey Decimal Classification.

Universal Decimal Classification.

The UNESCO Thesaurus is a controlled vocabulary which includes subject terms for the following areas of knowledge: education, science, culture, social and human sciences, information and communication, and politics, law and economics. It also includes the names of countries and groupings of countries: political, economic, geographic, ethnic and religious, and linguistic groupings.

W3C Encoding rules for dates and times - a profile based on ISO 8601.

A date range - two dates separated by a forward-slash (/). Each date should be entered according to the W3C note on 'Date and Time Formats'. Null dates may be used to indicate open-ended date ranges.

A list of types that categorize the collection according to the nature of the items in the collection.

A collection of items of type Dataset where a Dataset is information encoded in a defined structure (for example, lists, tables, and databases), intended to be useful for direct machine processing.

A collection of items of type Image, where an Image is a primarily symbolic visual representation other than text. For example - images and photographs of physical objects, paintings, prints, drawings, other images and graphics, animations and moving pictures, film, diagrams, maps, musical notation. Note that image may include both electronic and physical representations.

A collection of items of type Interactive Resource, where an an interactive resource is a resource which requires interaction from the user to be understood, executed, or experienced. For example - forms on web pages, applets, multimedia learning objects, chat services, virtual reality.

A collection of items of type Physical Object, where a Physical Object is an inanimate, three-dimensional object or substance. For example -- a computer, the great pyramid, a sculpture. Note that digital representations of, or surrogates for, these things should use Image, Text or one of the other types.

A collection of items of type Software, where Software is a computer program in source or compiled form which may be available for installation non-transiently on another machine. For software which exists only to create an interactive environment, use Interactive Resource instead.

A collection of items of type Sound, where a Sound is a resource whose content is primarily intended to be rendered as audio. For example - a music playback file format, an audio compact disc, and recorded speech or sounds.

A collection of items of type Text, where a Text is a resource whose content is primarily words for reading. For example - books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre text.