A good subfield: Extremely areas have several relevant items of investigation. Each type of information into the job is known as a subfield , and every subfield try preceded of the a great delimiter-subfield password consolidation . Areas 001 by way of 009 do not have subfields.
For example, the field for an individual term supposed has a great subfield to have your own term, numeration, titles and you will schedules with the name, one of many others.
An effective subfield password: Subfield codes are you to lowercase page (occasionally a number) preceded from the a beneficial delimiter. A good delimiter was a nature used to independent subfields. For every subfield password indicates what kind of study comes after it. (For every single field on MARC 21 authority format, the MARC 21 documents lists and you can refers to the brand new legitimate subfield requirements.)
About over example, the brand new subfield rules try $a for personal term, $b to possess numeration, $c to have headings or any other words associated with a name, and you will $d to own schedules with the a name.
An excellent delimiter: Additional programs play with more characters to portray new delimiter towards the the new display otherwise on the printouts. Examples was a two fold dagger ( ), a keen “at indication” (), a dollar sign ($), a keen underline ( _ ), and/or visual symbol ” “. Contained in this book brand new money signal ($) is used since the delimiter portion of the subfield code.
step one. The new expert listing posts.
An authority record is perfect for per licensed types of good supposed. For names, perhaps one of the most popular expert records is the Library out of Congress Label Expert File (otherwise LCNAF). That file is utilized within document to possess advice. The complete document is present in the Cataloging Shipments Provider (otherwise Dvds) or may be sought after online on: To have information otherwise geographical brands, typically the most popular subject expert file ‘s the LCSH. It’s made available from Dvds in print and you will digital form. There are various most other topic going directories, such as the Sears Range of Topic Headings and Ways and you can Buildings Thesaurus . The type of a subject supposed should fits that on these listing otherwise follow its statutes to own framework.
All of the headings are one of the adopting the brands: brands , name/title combinations , consistent titles , otherwise victims . Types of term titles tend to be:
A reputation/title going includes one another a reputation and you may a title out-of a work. The name part contains your own, business, conference, or legislation label. Brand new name bit provides the identity by which an item otherwise a sequence is to be understood for cataloging objectives. It is especially used in vintage performs which were typed lower than different headings throughout the years. A good example of a name/label going are:
What is actually an excellent MARC Authority Checklist
An interest heading can be a single https://kissbridesdate.com/hr/christian-filipina-recenzija/ term, phrase, otherwise a team of terms and conditions. The fresh new mark for the topic will be based upon the initial identity or phrase on heading — procedure, genre/function, geographic, chronological, private identity, corporate label, fulfilling label, or term. Additional terminology regarding the supposed have been in particular subfields you to definitely are called subdivisions.
MARC 21 authority records consist of two types of cross references one possibly head a user away from an enthusiastic unauthorized going to a 3rd party supposed (talking about called “discover sources” and use 4XX tags) otherwise from subscribed heading to another type of (talking about named “get a hold of along with references” and make use of 5XX labels). Genuine mix records usually are not carried clearly from inside the expert suggestions, however. Instead, variation means and you can related titles is actually “traced” throughout the expert record toward licensed means. Tracing get across sources as opposed to while making independent expert records having recommendations enables efficient and particular monitor off expert guidance by catalogs — and the profiles see the pointers in the function that’s appropriate for them. Cross reference displays can then getting created by assistance and this blend brand new contents of a tracing resource profession together with 1XX supposed world of a record.
