In preparing your library's data for GreenGlass, OCLC has compiled seven lists that may help to improve the efficacy of your records, the completeness of your WorldCat holdings, and/or the general efficacy of your collection. The first three contain items that have been filtered out of the GreenGlass Universe. All of these lists can be exported and adjusted to support local workflows.
The first three Remediation LIsts represent the items that have been filtered out of the analysis.
Note: There is no overlap between these lists.
This list contains records received from your library without OCLC numbers - and for which GreenGlass was unable to identify one.
These records contain an OCLC number, but the local title and/or author appear not to match the WorldCat™ record with the same number.
These records have reliable OCLC record numbers, but for a variety of reasons, they do not match the parameters of the project. Records for all out-of-scope items are found in this list. To learn why these items have been deemed out-of-scope, retrieve them by clicking on the hyperlinked tally to export and download the list.
Check the following columns in the exported list to find the reason(s) that a record was marked out-of-scope:
Column title | Out-of-scope details |
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Location Code |
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Primary Language |
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Bibliographic Record Type |
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Bibliographic Level |
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GPO Number |
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Government Document Number |
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Item Type Code |
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Item Status Code |
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When resources are filtered out of GreenGlass, you still have the opportunity to evaluate them with regard to subject, location, WorldCat holdings levels, local transactions, and HathiTrust status.
The below lists have items that have not been filtered out of the GreenGlass Universe.
As part of our normalization routine, GreenGlass uses LCCNs and title similarity logic to identify matching WorldCat™ records. These are records for which the library’s record does not contain an OCLC number. In exported lists, the GreenGlass assigned OCLC numbers can be found in the column labeled WorldCat OCLC Number.
These records were included in your data extract so we assume local ownership. However, at the time of our WorldCat™ look-up, your library’s holding was not set or was not set on the exact edition.
This list contains titles for which your library holds multiple editions. Whenever two or more titles with different OCLC numbers are found to share a common OCLC Work ID, they are included. Titles are grouped by OCLC Work ID with more recent editions showing first. The OCLC Work ID links related editions of the same work in WorldCat. Related editions can include new, revised, expanded or sequential editions, alternate US or UK editions, ebook editions, large print editions, or reprints.
Note: This list includes your library's out-of-scope items.
To export this list, click on the Export Results icon in the upper right corner of the screen.
Column descriptions:
Column | Description |
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OCLC Work ID |
The Multi-edition titles list is sorted by OCLC Work ID, with the most recent edition appearing first.
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OCLC Number | The GreenGlass assigned or validated OCLC record number. |
Call Number | The library's call number. |
Location | The location code of the library. |
Title | Information about the item's title, author, publisher, and publication year. |
Edition | The edition statement from the MARC record of the item. |
OPAC | The link to this record in the library's OPAC. The link is specific to the library's bibliographic number, meaning a single edition of the work. |
GreenGlass flags an item as a possible duplicate when there is more than one item associated with a single OCLC number and:
When these requirements are met, GreenGlass displays the entire set of items that share the OCLC number. Each item in the set has an assigned possible-duplicate flag. Only items flagged with a YES are suspected duplicates. The others are included to provide context.
Click Export Results to export a complete list of possible duplicates, sorted by OCLC number.
Additional areas to use the Possible Duplicates feature: