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    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

    Control Section
    Normalized Record Field Source/Content Note
    ILS API ID
    Created from the PNX control/sourceid merged with control/sourcerecorid
    Required for OPAC via Primo.

    Display Section

    Display Section
    Display Element Source Note
    Creator
    Contrbutor
    Subject
    Title
    Uniform Title
    Relation
    Same as Generic MARC except that conditions were added to prevent the use of non-preferred terms based on the content of $$P.
     
    Library Level Availability
    AVA
    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 $$j
    The Aleph AVA field has the following subfields:
    • $$a – ADM code.
    • $$b – sublibrary code.
    • $$c – collection. Takes first collection of the sublibrary.
    • $$d – call number. Takes first call number of collection. Subfields from 852 are selected based on the correct_852_subfields parameter in aleph_start,
    • $$e – availability status (see below for definition).
    • $$f – number of items (for entire sublibrary not just location).
    • $$g – number of unavailable loans (see below for definition of unavailable).
    • $$h – multi-volume flag (Y/N).
      If first Z30 Z30-ENUMERATION-A is not blank or 0, then the flag=Y, otherwise the flag=N.
    • $$i – number of loans (for ranking/sorting). Aleph counts the number of Z36H records.
    • $$j – code of collection in subfield c.
    • $$p – location priority.

    Definition of an Unavailable Item

    An item is unavailable if it matches one of the following conditions:
    • It is on loan (it has a Z36).
    • It is on hold shelf (it has Z37=S).
    • 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:
    1. If the record has no linked items, the availability status is defined as check_holdings.
    2. If the number of items (per sublibrary) is more than the threshold, the availability status is defined as check_holdings.
    3. If the number of items (per sublibrary) is less than the threshold, the status is determined as follows:
    4. If all items are available, then the availability status is defined as available.
    5. If all items are unavailable, then the availability status is defined as unavailable.
    6. 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).
    7. If it is multi-volume, the availability status is defined as check_holdings.
    8. 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

    Links Section
    Type of Link Source Note
    Backlink
    $$Taleph_backlink
     
    LinktoHoldings
    $$Taleph_holdings
     

    Search

    Search Section
    Index Source tag Notes
    Creator/contributor
    In addition to the fields used in Generic Marc also:
     
    AUT
    For cross-references
     
    Subject
    In addition to the fields used in Generic Marc also:
     
    SUB
    For cross-references
     

    Sort

    Sort Section
    Sort type DC field
    Popularity
    AVA $i
    Author
    Title
    Same as Generic MARC except that conditions were added to prevent the use of non-preferred terms based on the content of $$P.

    Facets

    Facets Section
    Facet Source Note
    Collection
    In addition to Generic Marc:
    Aleph sublibrary – AVA $$b
    Not in use currently
    Top-level
    Available in Library – records will be tagged as "Available in Library" if AVA $$e=available or check_holdings
     

    Dedup

    Dedup Section
    Dedup Field Source Additional normalization notes
    F11
    Same as Generic MARC except that the conditions were added to prevent the use of non-preferred terms based on content of $$P.
     

    FRBR

    FRBR Section
    FRBR Field Source Additional normalization notes
    K1
    K2
    Same as Generic MARC except that the conditions were added to prevent the use of non-preferred terms based on content of $$P.
     

    Delivery and Scoping

    Delivery and Scoping Section
    Delivery Field Source Additional normalization notes
    Institution
    AVA a
    Using institution look-up table.

    Additional Data

    Additional Data Section
    Additional Data Field Source Additional normalization notes
    Author First
    Author Last
    Corporate Author
    Addititional Author
    Same as Generic MARC except that conditions were added to prevent the use of non-preferred terms based on the content of $$P.
     

    Browse

    The system can create multiple occurrences in separate fields.
    Browse Section
    Browse field Source Note
    Author
    Same as Generic MARC except that Aleph includes information on the cross-references. For more information, refer to Browse Search.
     
    Subject
    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.
     
    Title
    Same as Generic MARC except that Aleph can include cross-reference information that needs to be suppressed.
     
    Call number
    AVA $$d (for call number)
    AVA $$a (for institution)
    AVA $$k (for the type)
    $$D (display form), $$E (normalized form), $$t (type) and $$I (institution) are created.

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