Collection Group Designation

CGD	Shareable	Retention Commitment	Notes
Committed	Shareable	Yes	CGD not changed by Matching Algorithm. These are items purchased via cooperative collection agreements, identified by the vendor. Do not expect that two items will match and both have been submitted with a CGD of Committed, but if that does happen, both will retain the Committed designation. If a Committed item matches a Shared item, both will retain their designations as Committed and Shared.
Shared	Shareable	Yes
Open	Shareable	No	When an item is submitted with a CGD of Open, the CGD is not changed by Matching Algorithm. It is not expected that items will be submitted as Open going forward, but it has been done in the past.
Uncommittable	Shareable	No	CGD not changed by Matching Algorithm.
Private	Not shareable	No	CGD not changed by Matching Algorithm.

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Bibs are considered a “Multi Match” when at least two of the following control numbers match:

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Title Match Comparison

Field <245> <a> is considered for Title Match Comparison
Diacritics and the blank spaces are removed from the title. All titles are converted to lower case before comparison
Words "A" , "AN" and "THE" not considered for title match irrespective of their place/location in the sentence

Matching copies from a single institution are not compared. It is up to the submitting institutions to only submit one copy of matching items to SCSB as “Shared,” and the rest as “Open

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When two items have a single number match but having different bib levels; one is a monograph and the other a serial. That is when the material type does not match, the matching algorithm is not applied

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When the CGD of an item is changed manually to Shared using the SCSB UI, the matching algorithm is not run on the item. This means that there could be two items with the Shared CGD.

The following reports are generated after each run of the matching algorithm:

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