Difference between revisions of "RDA 3.1"

Latest revision as of 07:37, 4 April 2014

RDA 3.1: GMD Standardization

MARS 2.0 updates obsolete General Material Designations (GMDs) to the current authorized form, and corrects most incorrectly spelled GMD variants.

Default

GMD location

MARS 2.0 assumes it has reached the end of the 245 $h when it encounters one of the following characters: subfield delimiter, end-of-field delimiter, forward slash, back slash, colon, semicolon, equals sign, or period.

The 245 $h will be moved:

• Before $b or after $n or $p in headings with a $b
• Before a $c in headings without a $b, $n, or $p

 original fields:
   245 10 $a Royal gazette /$c New Brunswick $h microform
   245 00 $a Daily report. $h kit $p People's Republic of China.

 updated fields:
   245 10 $a Royal gazette $h [microform] /$c New Brunswick.
   245 00 $a Daily report. $p People's Republic of China $h [kit].

AACR2 standard terms (level 1)

In the AACR2 Standard Terms option (GMD Level 1), MARS 2.0 processing will convert as many GMDs as possible to the terms authorized in the current edition of AACR2.

For example, both $h [computer file] and $h [computer fillle] would be modified to $h [electronic resource]. A list of terms in both processing levels is shown below.

Common practice terms (level 2)

In some local catalogs, there may exist GMDs which are not included in the AACR2 list of authorized GMDs (AACR2 paragraph 1.1C). The MARS 2.0 Level 2 GMD list contains common terms used in many libraries.

For example, using the Level 2 Common Practice Terms table, the GMD $h [audicassette] would be corrected to $h [audiocassette], while in the AACR2 Standard Terms option (Level 1) $h [audicassette] would be corrected to the standard AACR2 GMD $h [sound recording].

Obsolete terms (i.e., terms that were once authorized by AACR2 and have been replaced by a different term) are normally updated to the replacement term even in Level 2. For example, $h [computer file] is modified to $h [electronic resource].

Custom terms

You can easily modify either of the GMD term options available in MARS 2.0. For example, if you would like to standardize all your GMDs to the AACR2 Standard Terms, but retain the non-standard terms “microfiche” and “microfilm”, simply notate it in Step 2.9 under Additional Information.

Unrecognized terms

If the MARS 2.0 GMD tables do not contain a particular GMD variant, that GMD will be included in the Unrecognized GMD Report (see Step 5.2, R51).

Brackets

MARS 2.0 can also add square brackets around the GMD if not present. Similarly, if the GMD is enclosed in parentheses, angle brackets, etc. MARS 2.0 changes them to square brackets. MARS 2.0 can also remove brackets from GMDs to support systems in which the brackets cause display problems.

 original fields:
   245  14	$a The royal gazette $h microform /$c New Brunswick.
   245  10	$a Pride and prejudice $h (vidrecording) /$c Metro-Goldwyn-Mayer.

 updated fields:
   245  14	$a The royal gazette $h [microform] /$c New Brunswick.
   245  10	$a Pride and prejudice $h [videorecording] /$c Metro-Goldwyn-Mayer.

Even if your present local system generates the necessary square brackets, it is likely another system will require them in the record so adding them will facilitate record sharing.

Note: Brackets around GMDs can only be added or removed if GMDs are being standardized. If GMDs are not being standardized, no changes will occur in the 245 $h.

GMD Table Summary

The table below shows the results of selecting various GMD Standardization options when finding $h audiocasste in the bibliographic record:

AACR2 standard terms

(spelling variants not shown)

Common terms

(spelling variants not shown)

links