We t are hopeless nowadays sexy girl Chile to see a library diary, attend a library appointment, otherwise features an informal speak to other librarians in the place of hearing new sentences “MARC format,” “MARC ideas,” or “MARC-compatible.” Of several collection advantages have not had a chance to get official programs explaining the significant subject areas from collection automation in addition to character out of MARC, yet automatic library assistance will still be a fundamental element of their libraries.
Which booklet will explain — from the greatest terms and conditions you can easily — just what a beneficial MARC record is actually, and it will surely provide the basic recommendations wanted to understand and you may see a great MARC authority checklist. A companion file, Knowledge MARC Bibliographic, concentrates on the fresh new MARC bibliographic list.
Precisely what does MARC Imply?
Machine-readable: “Machine-readable” means that a pc, normally comprehend and interpret the information in the accurate documentation. The following pages will explain as to the reasons this is really important and exactly how its permitted.
Cataloging number: Cataloging info come in 2 types: 1) Bibliographic facts, containing information regarding a text, serial, sound recording, videorecording, etcetera., and dos) Authority facts, which contain standardized variations having labels, titles, and victims which can be applied to bibliographic info and supply cross recommendations within the catalogs. Understanding MARC Bibliographic identifies the first method of, this booklet makes reference to the following.
MARC Power Number: MARC power facts support the standardized forms of names for all those, corporate bodies (such, communities, organizations, associations, an such like.), conferences, titles, and you will sufferers. In this way, power facts render authority handle . Power manage function installing a recognized setting getting an organization identity and using that function if the name’s required as the a keen access point during the a great bibliographic listing.
Particularly, for individuals who appeared on your own library’s on the web collection to your popular guide, “The brand new Escapades of Tom Sawyer,” from the Mark Twain, you can access another bibliographic list display screen:
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Mcdougal and Subject entries (highlighted a lot more than) is actually regulated, recognized different identity and subject headings that will be found in separate power suggestions and you may put given that availability issues throughout the bibliographic record.
Instead power manage, wanting variety of guides in the a large collection collection is including looking a beneficial needle when you look at the a good haystack!
It is essential to note that the new formulation regarding a name, otherwise subject heading within the an authority checklist is dependant on generally approved cataloging and thesaurus-building exhibitions. The new MARC 21 expert record simply retains otherwise carries these headings for use inside the library expertise. Hence, it will not alone lay the principles to have formulating name or topic headings.
It’s very important to keep in mind that instead of bibliographic information, power suggestions do not show product from inside the an excellent library’s collection. Instead, he or she is equipment employed by librarians to achieve surface certainly one of bibliographic ideas and offer a linking construction to have associated labels and you may subjects inside the a directory — for this reason putting new directory to assist pages to find information.
1) Headings, 2) Cross sources, and you may step 3) Cards. (MARC authority ideas often in addition to include more info.) Though these elements try explained briefly less than, they’re also discussed in the rest of that it booklet.
1) Heading: New standardized “authoritative” type of a reputation, topic, otherwise term which is used to own availability factors on the bibliographic info. The intention of having fun with standardized labels and sufferers to your bibliographic information would be to let related records end up being retrieved to one another.
2) Cross references: Sources you to definitely direct a person regarding a variation kind of a name otherwise subject to brand new formal form (this is called a become reference) or from a single authoritative form to some other specialized means because they are pertaining to both (that is called a have plus reference). For MARC authority details, this new records are carried or “traced” into record to your official heading.