15 001
редагування
Зміни
м
Dubyk перейменував сторінку з Hold/Структура формату на Hold / Структура формату
==2. FORMAT STRUCTUREСтруктура формату==
UNIMARC is designed according to an agreed set of principles. These have been adopted for
''UNIMARC Holdings Format''.
==2.1 General Structure==
UNIMARC is a specific implementation of [[wikipedia:uk:ISO 2709|ISO 2709]], an international standard that specifies the
structure of records containing bibliographic data. It specifies that every bibliographic record prepared
for exchange conforming to the standard must consist of:
:- a '''RECORD LABELRecord label''' consisting of 24 characters;:- a '''DIRECTORYDirectory''' consisting of a 3-digit tag of each data field, along with its length and its starting character position relative to the first data field;:- '''DATA FIELDSData fields''' of variable length, each separated by a field separator, with the following layout:
{| class="wikitable"
|-
| RECORD LABEL Record label || DIRECTORY Directory || DATA FIELDS Data fields|| R/T
|}
:R/T = Record Terminator
[[wikipedia:uk:ISO 2709 |ISO 2709]] further specifies that the data in fields may optionally be preceded by indicators and
subdivided into subfields. UNIMARC, as an implementation, uses the following specific options
allowed under [[wikipedia:uk:ISO 2709|ISO 2709]].
For general information on the format structure see UNIMARC Manual: [[UNIMARC для бібліографічних записів|Bibliographic Format]], [[Структура формату|3Format Structure]].
==2.2 Functional Blocks==
indicates the block of the field.
:[[hold/0XX|0-- Identification Block]]: contains numbers that identify the record or the holding.:[[hold/1XX|1-- Coded Information Block]]: contains fixed length data elements (usually coded) describing various aspects of the record or data.:[[hold/2XX|2-- Location and access block]]: contains information that identifies the institution, physical site or collection at which a bibliographic unit is located or from which it may be available.:[[hold/3XX|3-- Note Block]]: contains notes, intended for public display, that contribute to the identification of the item described in the holdings record.:[[hold/5XX|5 --Extent of Holdings Block]]: contains information for caption, pattern, enumeration and chronology of a specific bibliographic item (basic or secondary unit) for which a location is to be made.:[[hold/7XX|7-- Responsibility Block]]: contains a form of responsibility heading related to the item described in the holdings record.:[[hold/8XX|8-- Source Information Block]]: contains the source of the record, and cataloguer's notes about the data not intended for public display.:[[hold/9XX|9-- National Use Block]]: contains data local to the originator of the record. Field tags will not be defined in the ''UNIMARC Holdings Format '' for intersystem exchange.
==2.3 Data Fields Set of Principles==