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Revision as of 10:24, 12 August 2008
GMD Standardization MARS 2.0 Update also updates obsolete General Material Designations (GMDs) to the current authorized form, and corrects most incorrectly spelled GMD variants.
Contents
Step 2.9 Question
The full MARS 2.0 Update process (Step 2.1) uses the AACR2 Standard Terms Table (Level 1) and adds square brackets. Please indicate which GMD table you would like to use and your preferred bracket practice by filling out Step 2.9 section ‘a’ and ‘b’.
GMD Location
MARS 2.0 Update will examine GMDs in the first subfield $h (Medium) in each 245 Title Statement. The processing assumes it has reached the end of the 245 $h subfield when it encounters one of the following characters: subfield delimiter, end-of-field delimiter, forward slash, back slash, colon, semicolon, equal sign, and period.
MARS 2.0 Update will also move the subfield $h if it is not in the correct location within the 245 field. The 245 $h subfield will be moved:
- Before a subfield $b
- After a subfield $n or $p in headings with a subfield $b
- Before a subfield $c in headings without a $b, $n or $p
Examples 245 14 $aThe royal gazette /$cNew Brunswick$hmicroform. 245 04 $aThe Green bag :$ba useless but entertaining magazine for lawyers$h[microform]. 245 00 $aDaily report.$h[microform]$pPeople’s Republic of China /$cFBIS. changes to: 245 14 $aThe royal gazette$h[microform] /$cNew Brunswick. 245 04 $aThe Green bag$h[microform] :$ba useless but entertaining magazine for lawyers. 245 00 $aDaily report.$pPeople’s Republic of China$h[microform] /$cFBIS.
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]. Most libraries will want to select this level of GMD processing.
Common Practice Terms (Level 2)
In their local catalog, some libraries use 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 replaced by the newer term $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 2.10 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 MGD Report (See Step 5.2, Report 51). A copy of the Report of Unrecognized GMDs can be requested on MARS Step 5.2.
Brackets
MARS 2.0 programs can also add square brackets around the GMD if not present. Similarly, if the GMD is enclosed in parentheses, angle brackets, etc. MARS programs change them to square brackets. MARS 2.0 can also remove brackets from GMDs to support systems in which the brackets cause display problems.
Examples 245 14 $aThe royal gazette$hmicroform /$cNew Brunswick. 245 10 $aPride and prejudice$h(vidrecording) /$cMetro-Goldwyn-Mayer. changes to: 245 14 $aThe royal gazette$h[microform] /$cNew Brunswick. 245 10 $aPride and prejudice$h[videorecording] /$cMetro-Goldwyn-Mayer.
The MARS 2.0 staff recommends adding square brackets to the 245 $h subfield. Even if your present local system generates the necessary square brackets, it is likely a future system will require them in the record.
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 subfields.
Summary
The table below shows the results of selecting the various GMD Standardization options in Step 2.9:
Original Form of GMD in Bibliographic Record: $haudiocasste
MARS 2.0 GMD Table – AACR2 Standard Terms (spelling variants not shown)
| Level 1 | Level 1 | Level 1 |
|---|---|---|
| activity card | flash card | object |
| art original | game | picture |
| art reproduction | kit | realia |
| braille | manuscript | slide |
| cartographic material | microform | sound recording |
| cartographic material (tactile) | microscope slide | technical drawing |
| chart | model | text |
| chart (large print) | motion picture | text (large print) |
| diorama | multimedia | toy |
| electronic resource | music | transparency |
| filmstrip | music (braille) | videorecording |
MARS 2.0 GMD Table – GMD Common Terms (spelling variants not shown)
| Level 2 | Level 2 | Level 2 |
|---|---|---|
| activity card | globe | record |
| art original | government document | serial |
| art reproduction | graphic | slide set |
| atlas | kit | sound recording |
| audiocassette | large print | sound recording (cassette) |
| braille | laser disc | sound recording (compact disc) |
| cartographic chart | LP | sound recording (CD) |
| cartographic material | manuscript | sound recording (LP) |
| cartographic material (tactile) | map | study print |
| CD recording | map (tactile) | technical drawing |
| CD-ROM | microfiche | text |
| CDV | microfilm | text (large print) |
| chart | microform | toy |
| chart (large print) | microopaque | transparency |
| compact disc | microprint | US document |
| diorama | microscope slide | VHS |
| DVD | model | video CD |
| DVD-ROM | motion picture | video single disc |
| electronic resource | music | videocassette |
| electronic resource (CD-ROM) | music (braille) | videodisc |
| federal document | newspaper | videodisc (DVD) |
| filmstrip | periodical | videorecording |
| flash card | photograph | videorecording (DVD) |
| floppy | picture | videorecording (VHS) |
| game | realia | VSD |
