Difference between revisions of "RDA 2.1"
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==STEP 2.1 : BIBLIOGRAPHIC VALIDATION== | ==STEP 2.1 : BIBLIOGRAPHIC VALIDATION== | ||
− | ===bibliographic validation=== | + | ===[[Step_2.0|bibliographic validation]]=== |
Prior to beginning the RDA processing, MARS 2.0 makes sure that the | Prior to beginning the RDA processing, MARS 2.0 makes sure that the | ||
bibliographic records are up to the latest AACR2 standard. Records which were | bibliographic records are up to the latest AACR2 standard. Records which were | ||
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The steps taken during Bibliographic Validation are the same steps taken during | The steps taken during Bibliographic Validation are the same steps taken during | ||
our authority control processing. To find more detailed information about these | our authority control processing. To find more detailed information about these | ||
− | steps, please review Step 2 from the MARS 2.0 Authority Control Planning | + | steps, please review [[Step_2.0|Step 2]] from the [[Step_1.0|MARS 2.0 Authority Control Planning |
− | Guide. Below you will find an overview of each type of change that will take | + | Guide]]. Below you will find an overview of each type of change that will take |
place during this step as well as the corresponding page number in our MARS | place during this step as well as the corresponding page number in our MARS | ||
2.0 Authority Control Planning Guide with more detailed information. | 2.0 Authority Control Planning Guide with more detailed information. | ||
− | ===step 2.1 : validate 010, 020, 022, 034 fields=== | + | ===[[Step_2.1|step 2.1 : validate 010, 020, 022, 034 fields]]=== |
MARC fields that are incorrectly formatted often cause user searches to fail and | MARC fields that are incorrectly formatted often cause user searches to fail and | ||
prevent items in the collection from being included in the system indexes. MARS | prevent items in the collection from being included in the system indexes. MARS | ||
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and 034 fields. | and 034 fields. | ||
− | ===step 2.2 : leader & fixed field updates=== | + | ===[[Step_2.2|step 2.2 : leader & fixed field updates]]=== |
Bibliographic validation processing provides a variety of updates and corrections | Bibliographic validation processing provides a variety of updates and corrections | ||
to values in the Leader and Fixed fields (006, 007, 008). These updates mainly | to values in the Leader and Fixed fields (006, 007, 008). These updates mainly | ||
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(book, map, etc.). | (book, map, etc.). | ||
− | ===step 2.3 : field updates &deletes=== | + | ===[[Step_2.3|step 2.3 : field updates &deletes]]=== |
Changes to the MARC 21 communications format have made many fields | Changes to the MARC 21 communications format have made many fields | ||
obsolete. If one field has been replaced by another, the update changes the tag | obsolete. If one field has been replaced by another, the update changes the tag | ||
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another field. Currently, 16 fields are removed from the bib record in this step. | another field. Currently, 16 fields are removed from the bib record in this step. | ||
− | ===step 2.4 : subfield updates & deletes=== | + | ===[[Step_2.4|step 2.4 : subfield updates & deletes]]=== |
Many subfields are no longer valid within certain fields and so the subfield | Many subfields are no longer valid within certain fields and so the subfield | ||
marker is changed from one (invalid) to another (valid). There are also a number | marker is changed from one (invalid) to another (valid). There are also a number | ||
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subfield, with 24 fields that have obsolete subfields removed altogether. | subfield, with 24 fields that have obsolete subfields removed altogether. | ||
− | ===step 2.5 : indicator updates=== | + | ===[[Step_2.5|step 2.5 : indicator updates]]=== |
In order to bring the indicators (both 1st & 2nd) in line with current MARC 21 | In order to bring the indicators (both 1st & 2nd) in line with current MARC 21 | ||
standards, many fields in this step have their indicators changed from one value | standards, many fields in this step have their indicators changed from one value | ||
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updated and 26 fields with the 2nd indicator updated. | updated and 26 fields with the 2nd indicator updated. | ||
− | ===step 2.6 : field conversions & additions=== | + | ===[[Step_2.6|step 2.6 : field conversions & additions]]=== |
A number of MARC update conversions are more complex than simply changing | A number of MARC update conversions are more complex than simply changing | ||
a field tag or subfield code to the current value. Some fields, such as the 007, | a field tag or subfield code to the current value. Some fields, such as the 007, | ||
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field conversions. There are 12 fields in this step that are affected. | field conversions. There are 12 fields in this step that are affected. | ||
− | ===step 2.7 : initial article & filing indicators=== | + | ===[[Step_2.7|step 2.7 : initial article & filing indicators]]=== |
MARS 2.0 supports the standard practice of omitting most initial articles even if | MARS 2.0 supports the standard practice of omitting most initial articles even if | ||
a nonfiling character indicator has been defined for the field. Initial articles are | a nonfiling character indicator has been defined for the field. Initial articles are | ||
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indicator, sorted by language. | indicator, sorted by language. | ||
− | ===step 2.8 : gmd standardization=== | + | ===[[Step_2.8|step 2.8 : gmd standardization]]=== |
MARS 2.0 also updates obsolete General Material Designations (GMD) to the | MARS 2.0 also updates obsolete General Material Designations (GMD) to the | ||
current authorized form, and corrects most incorrectly spelled GMD variants. If | current authorized form, and corrects most incorrectly spelled GMD variants. If |
Revision as of 10:55, 5 January 2012
Contents
- 1 STEP 2.1 : BIBLIOGRAPHIC VALIDATION
- 1.1 bibliographic validation
- 1.2 step 2.1 : validate 010, 020, 022, 034 fields
- 1.3 step 2.2 : leader & fixed field updates
- 1.4 step 2.3 : field updates &deletes
- 1.5 step 2.4 : subfield updates & deletes
- 1.6 step 2.5 : indicator updates
- 1.7 step 2.6 : field conversions & additions
- 1.8 step 2.7 : initial article & filing indicators
- 1.9 step 2.8 : gmd standardization
- 2 LINKS
STEP 2.1 : BIBLIOGRAPHIC VALIDATION
bibliographic validation
Prior to beginning the RDA processing, MARS 2.0 makes sure that the bibliographic records are up to the latest AACR2 standard. Records which were cataloged using an older standard (e.g., AACR1) can be brought up to current AACR2 standards before being converted to RDA standards.
The steps taken during Bibliographic Validation are the same steps taken during our authority control processing. To find more detailed information about these steps, please review Step 2 from the MARS 2.0 Authority Control Planning Guide. Below you will find an overview of each type of change that will take place during this step as well as the corresponding page number in our MARS 2.0 Authority Control Planning Guide with more detailed information.
step 2.1 : validate 010, 020, 022, 034 fields
MARC fields that are incorrectly formatted often cause user searches to fail and prevent items in the collection from being included in the system indexes. MARS 2.0 can clean up spacing, hyphens, prefixes, and suffixes of the 010, 020, 022, and 034 fields.
step 2.2 : leader & fixed field updates
Bibliographic validation processing provides a variety of updates and corrections to values in the Leader and Fixed fields (006, 007, 008). These updates mainly consist of changing one value to another based on the type of record format (book, map, etc.).
step 2.3 : field updates &deletes
Changes to the MARC 21 communications format have made many fields obsolete. If one field has been replaced by another, the update changes the tag number. If the field has been made obsolete without being replaced, the field is simply deleted from the bib record. There are 22 fields that are changed to another field. Currently, 16 fields are removed from the bib record in this step.
step 2.4 : subfield updates & deletes
Many subfields are no longer valid within certain fields and so the subfield marker is changed from one (invalid) to another (valid). There are also a number of subfields which no longer have any corresponding use in the bib record and these are removed as part of the bibliographic validation processing. Relator term entries are included in this step. There are 15 subfields changed to another subfield, with 24 fields that have obsolete subfields removed altogether.
step 2.5 : indicator updates
In order to bring the indicators (both 1st & 2nd) in line with current MARC 21 standards, many fields in this step have their indicators changed from one value (invalid) to a specific value (valid). There are 32 fields with the 1st indicator updated and 26 fields with the 2nd indicator updated.
step 2.6 : field conversions & additions
A number of MARC update conversions are more complex than simply changing a field tag or subfield code to the current value. Some fields, such as the 007, often need to be added to a record.
Step 2.6 adds missing format data, missing subfield data, and makes complex field conversions. There are 12 fields in this step that are affected.
step 2.7 : initial article & filing indicators
MARS 2.0 supports the standard practice of omitting most initial articles even if a nonfiling character indicator has been defined for the field. Initial articles are retained, and the filing indicator correctly set, for the 245 and 440 fields.
You can also choose to have corporate heading fields checked for initial articles. This applies to the $t in the X10 fields.
There is also an extensive list of each initial article with its associated filing indicator, sorted by language.
step 2.8 : gmd standardization
MARS 2.0 also updates obsolete General Material Designations (GMD) to the current authorized form, and corrects most incorrectly spelled GMD variants. If brackets are missing, these can also be added in this step. GMD standardization also helps convert this information to the Content, Media, and Carrier types listed in Step 3 of this planning guide.
The AACR2 Standard Terms Table (Level 1 - p. 57) is used by default in this step. However, Common Terms Table (Level 2 - p. 58), andcustom options are also available, depending on your preference.
LINKS
1.0 - 2.0 - 3.0 - 4.0 - 5.0 - 6.0 - 7.0