RDA 7.1

RDA OPTION 1.0

Inasmuch as there can be a default for authorizing your headings when it concerns RDA, this option may be a good starting point. This is useful for libraries that are not yet ready to embrace RDA (or never plan to do so).

AACR2 and RDA bibs are processed in the same manner for this option. Both are treated as if they were AACR2. Matching is made solely from the 1xx/4xx headings within the AACR2 authority. Matching headings are then updated with the 1xx version of the AACR2 authority. Unmatched headings are added to a report and retained as-is within the respective AACR2 or RDA bib.

AACR2 bib search order:

1. AACR2 1xx/4xx

RDA bib search order:

1. AACR2 1xx/4xx

RDA OPTION 2.0

AACR2 bibs are matched to 1xx and 4xx fields in AACR2 authority records. Matched headings are updated to the 1xx form. RDA bibs are not processed in this option. They are separated and effectively ignored during processing. These ignored RDA bibs can be delivered separately or combined as desired. They can then be searched at a later date by the library.

AACR2 bib search order:

1. AACR2 1xx/4xx

RDA bib search order:

1. no search

RDA OPTION 3.0

AACR2 bibs are are matched against 1xx and 4xx fields in AACR2 authorities. Matched headings are updated to the 1xx version. RDA bibs are first searched against 1xx and 4xx fields in RDA authorities. Matched headings are updated to the 1xx version on the RDA authority. Unmatched RDA headings are then matched against 7xx _4 headings in AACR2 records and if matched are updated reflect the AACR2 700-4 version.

AACR2 bib search order:

1. AACR2 1xx/4xx

RDA bib search order:

1. RDA 1xx/4xx
2. AACR2 700-4

RDA OPTION 3.5

AACR2 bibs continue to start their initial searching similar to the previous options listed above (1st = AACR2 1xx/4xx). However, if there is no match against the AACR2 1xx/4xx, then the system proceeds to check the RDA authority file. A match at this point changes the AACR2 bib heading to the RDA 1xx version (returning the RDA authority as a matching record).

RDA bibs are treated the same as in the first couple steps of option 3 above (1st = RDA; 2nd = AACR2 700-4). Where it diverges is when there is no match against the AACR2 700-4 heading. In these cases, option 3.5 further attempts to find a match against the AACR2 1xx/4xx. A match at this point yields the 1xx version of the AACR2 authority.

AACR2 bib search order:

1. AACR2 1xx/4xx
2. RDA 1xx/4xx

RDA bib search order:

1. RDA 1xx/4xx
2. AACR2 700-4
3. AACR2 1xx/4xx

RDA OPTION 4.0

AACR2 bibs continue to start their initial searching similar to the previous options listed above (1st = AACR2 1xx/4xx). However, if there is no match against the AACR2 1xx/4xx, then the system proceeds to check the AACR2 700-4 heading. A match at this point changes the AACR2 bib heading to the AACR2 1xx version.

RDA bibs are treated similar to option 1 above (1st = AACR2 1xx/4xx). If no match is found, then the RDA bib heading is searched against the AACR2 700-4 heading. In both cases, the AACR2 1xx version is the preferred change to the original RDA bib heading.

AACR2 bib search order:

1. AACR2 1xx/4xx
2. AACR2 700-4

RDA bib search order:

1. AACR2 1xx/4xx
2. AACR2 700-4

RDA OPTION 4.5

AACR2 bibs continue to start their initial searching similar to the previous options listed above (1st = AACR2 1xx/4xx; 2nd = AACR2 700-4). However, if there is no match by this point, an attempt is made against the RDA authority file. A match yields the 1xx version of the RDA authority in place of the AACR2 bib heading.

RDA bibs are treated exactly the same as in option 4 (1st = AACR2 1xx/4xx; 2nd = AACR2 700-4).

AACR2 bib search order:

1. AACR2 1xx/4xx
2. AACR2 700-4
3. RDA 1xx/4xx

RDA bib search order:

1. AACR2 1xx/4xx
2. AACR2 700-4

RDA OPTION 5.0

If there was one other potential default for a library to choose for their RDA authority control processing, this option might be a good fit. This option searches logically based on initial record type (AACR2 or RDA), but only changing to the authorized 1xx version of the respective authority file.

AACR2 bib search order:

1. AACR2 1xx/4xx
2. RDA 1xx/4xx
3. AACR2 700-4

RDA bib search order:

1. RDA 1xx/4xx
2. AACR2 700-4
3. AACR2 1xx/4xx

LINKS

7.1

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1.0 - 2.0 - 3.0 - 4.0 - 5.0 - 6.0 - 7.0