Aleph MARC 21
In most aspects the Aleph MARC 21 mapping is the same as the Generic MARC mapping. The only exceptions are listed below.
Control Section
Normalized Record Field | Source/Content | Note |
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ILS API ID
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Created from the PNX control/sourceid merged with control/sourcerecorid
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Required for OPAC via Primo.
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Display Section
Display Element | Source | Note |
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Creator
Contrbutor
Subject
Title
Uniform Title
Relation
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Same as Generic MARC except that conditions were added to prevent the use of non-preferred terms based on the content of $$P.
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Library Level Availability
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AVA
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The Availablity field subfields are created as follows:
$$I Institution – based on institution look-up table based on AVA $a
$$L Library – based on library lookup table based on AVA $$b
$$1 Sublocation – from AVA $$c
$$2 Call number – from AVA $$d
$$S Availability status – based on AVA $$e
$$3 No. of items – from AVA $$f
$$4 no of unavailable items – from AVA $$g
$$5 multi-volume flag – from AVA $$h
$$6 number of loans – from AVA $$i
$$9 – For more information, refer to section Adding $$9ONLINE to Library Level Availability.
$$P location priority – from AVA $$p
$$X source institution code (Aleph ADM) – from AVA $$a
$$Y source library code (Aleph sublibrary) – from AVA $$b
$$Z source sublocation code (Aleph collection) – from AVA $$j
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The Aleph AVA field has the following subfields:
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$$a – ADM code.
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$$b – sublibrary code.
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$$c – collection. Takes first collection of the sublibrary.
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$$d – call number. Takes first call number of collection. Subfields from 852 are selected based on the correct_852_subfields parameter in aleph_start,
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$$e – availability status (see below for definition).
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$$f – number of items (for entire sublibrary not just location).
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$$g – number of unavailable loans (see below for definition of unavailable).
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$$h – multi-volume flag (Y/N).If first Z30 Z30-ENUMERATION-A is not blank or 0, then the flag=Y, otherwise the flag=N.
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$$i – number of loans (for ranking/sorting). Aleph counts the number of Z36H records.
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$$j – code of collection in subfield c.
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$$p – location priority.
Definition of an Unavailable Item
An item is unavailable if it matches one of the following conditions:
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It is on loan (it has a Z36).
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It is on hold shelf (it has Z37=S).
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It has a processing status (one of the processing statuses that have been defined as available in tab_expand) and does not have a value in Z30-DEPOSITORY-ID.
Number of Items to Check Threshold
Aleph has a parameter that defines the maximum number of items to check per sublibrary. For more information, refer to the Aleph Publishing Mechanism document.
Availability Statuses from Aleph
The availability statuses are determined as follows:
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If the record has no linked items, the availability status is defined as check_holdings.
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If the number of items (per sublibrary) is more than the threshold, the availability status is defined as check_holdings.
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If the number of items (per sublibrary) is less than the threshold, the status is determined as follows:
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If all items are available, then the availability status is defined as available.
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If all items are unavailable, then the availability status is defined as unavailable.
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If some items are available and others are unavailable, the system checks if the item is multi-volume or not (by checking if first Z30-ENUMERATION-A is not blank or 0).
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If it is multi-volume, the availability status is defined as check_holdings.
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If it is not multi-volume, the availability status is defined as available.
For more information on Aleph thresholds and availability statuses, refer to the Aleph Publishing Mechanism document.
Links
Type of Link | Source | Note |
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Backlink
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$$Taleph_backlink
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LinktoHoldings
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$$Taleph_holdings
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Search
Index | Source tag | Notes |
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Creator/contributor
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In addition to the fields used in Generic Marc also:
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AUT
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For cross-references
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Subject
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In addition to the fields used in Generic Marc also:
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SUB
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For cross-references
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Sort
Sort type | DC field |
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Popularity
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AVA $i
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Author
Title
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Same as Generic MARC except that conditions were added to prevent the use of non-preferred terms based on the content of $$P.
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Facets
Facet | Source | Note |
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Collection
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In addition to Generic Marc:
Aleph sublibrary – AVA $$b
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Not in use currently
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Top-level
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Available in Library – records will be tagged as "Available in Library" if AVA $$e=available or check_holdings
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Dedup
Dedup Field | Source | Additional normalization notes |
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F11
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Same as Generic MARC except that the conditions were added to prevent the use of non-preferred terms based on content of $$P.
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FRBR
FRBR Field | Source | Additional normalization notes |
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K1
K2
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Same as Generic MARC except that the conditions were added to prevent the use of non-preferred terms based on content of $$P.
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Delivery and Scoping
Delivery Field | Source | Additional normalization notes |
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Institution
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AVA a
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Using institution look-up table.
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Additional Data
Additional Data Field | Source | Additional normalization notes |
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Author First
Author Last
Corporate Author
Addititional Author
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Same as Generic MARC except that conditions were added to prevent the use of non-preferred terms based on the content of $$P.
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Browse
The system can create multiple occurrences in separate fields.
Browse field | Source | Note |
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Author
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Same as Generic MARC except that Aleph includes information on the cross-references. For more information, refer to Browse Search.
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Subject
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Same as Generic MARC except that Aleph includes the information on cross-references and subject type (such as LCSH, MESH, and so forth). For more information, refer to Browse Search.
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Title
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Same as Generic MARC except that Aleph can include cross-reference information that needs to be suppressed.
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Call number
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AVA $$d (for call number)
AVA $$a (for institution)
AVA $$k (for the type)
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$$D (display form), $$E (normalized form), $$t (type) and $$I (institution) are created.
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