MARC 21 Concise Authority: Location and Alternate Graphics (8XX)

This is an ARCHIVED VERSION of the 2000 electronic edition of the MARC 21 Concise Formats. Please see www.loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

Field 856 and 880 are the only 8XX fields defined in the MARC 21 authority format at the present time. For the most part, these fields carry over the definitions found in the MARC 21 Bibliographic and Community Information formats.

Information for Translators and Other Users
Items highlighted in red indicate changes made after the 1998 edition of the USMARC Concise Formats was published (This publication included the 1993 base text, along with Updates No. 1 (July 1995) and No. 2 (March 1997) of the USMARC Format for Authority Data).

Items highlighted in green indicate changes made to the online format only. These changes will be corrected in the 2001 printed edition of the MARC 21 Concise Formats (Available soon).

• 856 - ELECTRONIC LOCATION AND ACCESS (R)
• 880 - ALTERNATE GRAPHIC REPRESENTATION (R)

856 - ELECTRONIC LOCATION AND ACCESS (R)

The information needed to locate and access electronic information. The field may be used in an authority record to provide supplementary information available electronically about the entity for which the record was created.

Field 856 is repeated when the location data elements vary (the URL in subfield $u or subfields $a, $b, $d, when used). It is also repeated when more than one access method is used, mirror sites are recorded, different formats/resolutions with different URLs are indicated, and related items are recorded.

Indicators

• First - Access method
  A value that defines the access method to the electronic resource. If the resource is available by more than one access method, the field is repeated. When recording a URL in subfield $u, the value corresponds to the access method (URL scheme), which is also the first element in the string.
• # - No information provided
• 0 - Email
  Indicates that access is through electronic mail (email).
• 1 - FTP
  Indicates that access is through the File Transfer Protocol (FTP).
• 2 - Remote login (Telnet)
  Indicates that access is through remote login using an application such as Telnet.
• 3 - Dial-up
  Indicates that access to the electronic resource is through a conventional telephone line (dial-up).
• 4 - HTTP
  Indicates that access to the electronic resource is through the Hypertext Transfer Protocol.
• 7 - Method specified in subfield $2
• Second - Relationship
  A value that identifies the relationship between the electronic resource at the location identified in field 856 and the entity described in the record.
  • # - No information provided
    Indicates that no information is provided about the relationship of the electronic resource described in the record.
  • 0 - Resource
  • 1 - Version of resource
  • 2 - Related resource
  • 8 - No display constant generated
    Do not apply indicator values to authority records

Subfield Codes

• $a - Host name (R)
  The fully qualified domain (host name) of the electronic location. It contains a network address which is repeated if there is more than one address for the same host.
• $b - Access number (R)
  The access number associated with a host. It can contain the Internet Protocol (IP) numeric address if the item is an Internet resource, or a telephone number if dial-up access is provided through a telephone line. This data may change frequently and may be generated by the system, rather than statically stored.
• $c - Compression information (R)
  Information about the compression of a file, in particular, whether a specific program is required to decompress the file.
• $d - Path (R)
  The path, the series of logical directory and subdirectory names where a file is stored.
• $f - Electronic name (R)
  The electronic name of a file as it exists in the directory/subdirectory indicated in subfield $d.
• $h - Processor of request (NR)
  The username, or processor of the request; generally the data which precedes the at sign (@) in the host address.
• $i - Instruction (R)
  An instruction needed for the remote host to process a request.
• $j - Bits per second (NR)
• $k - Password (NR)
• $l - Logon (NR)
  Characters needed to connect (i.e., logon, login, etc.) to an electronic resource or FTP site. This subfield is used to record general-use logon strings which do not require special security.
• $m - Contact for access assistance (R)
• $n - Name of location of host (NR)
  The conventional name of the location of the host in subfield $a, including its geographical location.
• $o - Operating system (NR)
• $p - Port (NR)
  The portion of the address that identifies the process or service in the host.
• $q - Electronic format type (NR)
  An identification of the electronic format type, which is the data representation of the resource, such as text/HTML, ASCII, Postscript file, executable application, or JPEG image. Electronic format type may be taken from enumerated lists such as registered Internet Media Types (MIME types).
• $r - Settings (NR)
• $s - File size (R)
• $t - Terminal emulation (R)
• $u - Uniform Resource Identifier (R)
  The URI, which provides standard syntax for locating an object using existing Internet protocols. Field 856 is structured to allow for the creation of a URL from the concatenation of other separate 856 subfields. Subfield $u may be used instead of those separate subfields or in addition to them. Subfield $u may be repeated only if one location of the digital object has multiple identifiers (URIs). The field is repeated if the digital object has multiple locations.
• $v - Hours access method available (R)
• $w - Record control number (R)
• $x - Nonpublic note (R)
• $y - Link text (R)
  Used for display in place of the URL in subfield $u (Uniform resource identifier). When subfield $y is present, applications should use the contents of it as the link instead of subfield $u linking to the destination in subfield $u.
• $z - Public note (R)
• $2 - Access method (NR)
  The access method when the first indicator position contains value 7.
• $3 - Materials specified (NR)
  Information that specifies the part of the entity to which the field applies.
• $6 - Linkage (NR) See Control Subfields
• $8 - Field link and sequence number (R) See Control Subfields

Examples

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880 - ALTERNATE GRAPHIC REPRESENTATION (R)

Indicators

• First - Same as associated field
• Second - Same as associated field

Subfield Codes

• $6 - Linkage (NR) See Control Subfields
• $a-z - Same as associated field
• $0-5 - Same as associated field
• $7-9 - Same as associated field

Examples

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