Showing posts with label subfields. Show all posts
Showing posts with label subfields. Show all posts

Saturday, January 21, 2012

Walkthrough with MARC


100 and 110 Fields (main entry/creator of records; NR)


100 – personal name of individual or family; Subfield codes oft used – subfield a, and d
110 – corporate body (indicator 1 used for things like governments, for all other cases use 2); Subfield a and b

WATCH THE PUNCTUATION

245 Field (title statement; NR)


Indicators – 0 for added entry, 1 for added entry; second indicator for nonfiling characters, usually 0 for archives

Subfield codes often used – a, f and g; k is for forms

300 Field (physical description, R)


Indicators are undefined
Subfield codes of used – a, b, f and g

351 Field (Organization and arrangement of materials, R)


Subfield codes often used – a and b

$3 – material specified; this is ONLY for X, like “diaries and notebooks”

520 Field (Summary, abstract, etc; R)


Indicators very important!

Subfield codes often used – a, sometimes b (sometimes systems display short versions, and long versions); $3

Essentially a copy and paste from finding aid

545 Field (Biographical or historical Data, R)


Indicators – usually choose 0 or 1, second is undefined
Subfield codes often used – a and b

5XX


506 – restrictions on access; required in archives
524 – Preferred citation for described materials; for optimal record
535 – location of originals/duplicates
540 – terms governing use and reproduction aka copyright note
541 – immediate source of acquisition (always use)
561 – for the elaborate history of ownership
544 – location of other archival materials; related collections to collection at hand; associated materials are other materials Ided in a note that has the same provenace but reside in different reposityr; related materials have different provenance and reside in your repository
546 – Language note; use when lang is other than english
555 – Note making a pointer to more extensive finding aid
583 – Action note; record actions in area of preservation or appraisel or status of preservation of material; standardized terminology

7XX (Added entries, R)


700 and 710 mostly; Similar to 100 and 110 fields

852 – Location (r)


Required even for minimum records

First indicator – should probably use 4 (number assigned to collection is here)
Second indicator – should be # usually

Subfield codes often used – a, e, j

Don't pay attention to classification schemas, as we don't use them in archival collections

Organization code source list

Leader and 008 Field

Leader is a fixed field with fixed number of characters; NR; no indicators or subfield codes
06 – choose p unless you have specific formats
07 – choose c for collections
08 – choose a for archival
09 – choose # for MARC
10 – choose 2
11 – choose 2
12-16 – don't worry about bc system generates it for us
17 – encoding level; usually put # for full level
18 – choose AACR2 (a) because of the derivation of them
19 - use # bc not worried about it
20-23 – tell you exactly what to put there: 4, 5, 0, 0

008 field – control field; fixed legnth data element; there are 39 defined character position; character position 18-34 jump to mixed materials position

MARC - Overview

Overview of MARC Structure


Structure of MARC
  • Structure – Form that the information takes in a computer record (Order of elements; lengths of fields; how fields are subdivided)
  • MARC and EAD require an order of elements, unlike DACS

Composition of MARC record
  • Record structure – adheres to the ANSI standard for bibliographic information interchange (ANSI Z39.2)
  • Content designation – codes and conventions used to characterize the data, which is established by MARC
  • Content of the data elements – governed by a content standard (e.g. DACS)

MARC Tags and Codes
  • Field tag – three character numeric codes which identify fields of information (e.g. 100, 245, 300)
  • Indicators – one character codes which come immediately after field tags and provide information on the content of the tag; not always used
  • Subfield codes – define elements within a field; are preceded by a character called a delimiter sign (often the characters $ or # are used)

Major components of MARC record in bibliographic format
  • Leader and Directory – fixed; 24 characters long; often supplied automatically (no data entry required)
  • Variable fields – Control fields (no indicators or subfield; 00X fields); Data fields (two indicator positions, two-character subfield codes preceding each data element within the field)

Other important aspects of MARC record structure
  • Field/subfield repeatability – some fields and subfields are repeatable and some are not (e.g. each record may only have one 1XX, or main entry); commonly repeatable fields include 300, 6XX, and 7XX; check the MARC format online to see which can be repeated, R is repeatable and NR is not
  • Display constants – some systems are programmed to display certain descriptive information automatically, so you don't have to type in things like “scope and content” every time you input this information; these constants are often controlled by indicator codes – kind of like turning it on or off, depending on what code you put in; Check the MARC format codes online to make sure you have it when you want it or don't

Major blocks of fields for MARC
0XX – control information, numbers, codes
1XX – Main entry
2XX – titles, edition, imprint
3XX – physical description, etc
4XX – series statements (but this is different than archival series)
5XX – Notes (used a lot)
6XX – subject access fields
7XX – Name, etc added entries or series, linking
8XX – series added entries, holdings and locations
9XX – reserved for local implementation