Vega uses the BIBFRAME standard for all data mappings and display. As a Vega Discover library, your collections will be imported as MARC and converted to BIBFRAME. It's important that your library staff understands how your current MARC metadata will be converted and what to expect in regard to how your bibliographic records will behave under the new classifications as instance records that roll up into works in Vega.
The following MARC to BIBFRAME conversion guidelines will help you understand how MARC leader and other fixed field metadata values in your MARC records will cause Vega to classify those records as different types of instances. This is important to understand so that you can troubleshoot any records that don't display as you expect on your Vega Discover site. You can also use the information to perform data cleanup before you move to Vega.
Notes:
- Records are processed from MARC to BIBFRAME according to tag number, so if the instance type is set by the LDR during processing, it could be overwritten based on a later tag (such as data from the 006 or 008).
- Instance type is a required field, with a default value of "print." A record's instance type is set to "print" if the record does not meet any of the requirements described below to assign a different instance type.
- Any type that is not electronic is considered physical.
MARC record (instance) electronic material requirements
- An instance will be classified as type = "electronic" if one of the following conditions is true:
- LDR06 (record type) = m, indicating a computer file
- 007 (00) = c, indicating a computer file or electronic resource
- A "BOOKS" "MUSIC" "CONTINUING RESOURCES" "MIXED MATERIALS" instance will be classified as type = "electronic" if both of the following conditions are true:
- LDR06 (record type) and LDR07 values =
- MARC "BOOKS" have LDR06 = t or LDR06 = a AND LDR07 = a, c, d, or m
- MARC "MUSIC" have LDR06 = c, d, i, or j
- MARC "CONTINUING RESOURCES" have LDR06 = a AND LDR07 = b, i, or s
- MARC "MIXED MATERIALS" have LDR06 = p
- 008/23 = s or q, indicating "electronic"
- A "VISUAL MATERIALS" instance will be classified as type = "electronic" if both of the following conditions are true:
- LDR06 (record type) = g, k, o, or r
- 008/29 = s or q, indicating "electronic"
- An instance will be classified as type = "electronic" if the following 006/00,06 combination is true:
- For 006/00 = a, t ("BOOKS"), c, d, i, j ("MUSIC"), s ("CONTINUING RESOURCES"), or p ("MIXED MATERIALS")
- 006/06 = q or s
- An instance will be classified as type = "electronic" if the following 006/00,12 combination is true:
- For 006/00 = g, k, o, or r ("VISUAL MATERIALS")
- 006/12 = q or s
Ebook vendor type requirements
Overdrive
037 $a Title ID $b begins with "overdrive" (case insensitive)
856 $u contains URL to record
Hoopla
037 $a Title ID $b begins with "midwest" (case insensitive)
856 $u contains URL to record
Multimedia link (physical type materials only)
- Doesn't have the 037 data that designates an Overdrive or Hoopla ebook
- Does have: 856 $u contains URL to record
- Will display text instead of $u if: $z "public note," $y "note," or $3 "link text" is present. When more than one of these subfields are present, one will be chosen in order $z, $y, $3.
MARC record (instance) physical material requirements
- An instance will be classified as type = "print" if LDR06 = a and LRD07 = a, b, i, m, or s
- An instance will be classified as type = "print" if the following 006/00,06 combination is true:
- For 006/00 = a, t ("BOOKS"), c, d, i, j ("MUSIC"), s ("CONTINUING RESOURCES"), or p ("MIXED MATERIALS")
- 006/06 = r
- An instance will be classified as type = "print" if the following 006/00,12 combination is true:
- For 006/00 = g, k, o, or r ("VISUAL MATERIALS")
- 006/12 = r
- An instance will be classified as type = "print" if 008/23 = r for "BOOKS" "MUSIC" "CONTINUING RESOURCES" "MIXED MATERIALS"
- An instance will be classified as type = "print" if 008/29 = r for "VISUAL MATERIALS"
Manuscript
- An instance will be classified as type = "manuscript" if LDR06 (record type) = d, f, or t
Archival
- An instance will be classified as type = "archival" if LDR08 (type of control) = a
Collection
- An instance will be classified as type = "collection" if LDR07 = c or d