Fields
There are three kinds of fields in the ISO 2709 record:
- Record identifier field—identifying the record and assigned by the organization that creates the record. The record identifier field has tag 001.
- Reserved fields—Reserved fields supply data which may be required for the processing of the record. Reserved fields always have a tag in the range 002–009 and 00A–ZZZ.
- Bibliographic Fields—these are in the range 010–999 and 0AA–ZZZ. The bibliographic fields contain data and a field separator (IS2 of ISO 646). They can also have these optional sub-parts:
- Indicator (0–9 characters, as coded in the Leader)—Indicators generally provide further information about the contents of the field, the relationship between the field and other fields in the record, or about action required in certain data manipulation processes (including display labels).
- Identifier (0–9 characters)—This identifies data within the bibliographic field. Where used, identifiers are composed of a delimiter (1 char, IS1 of ISO 646) and an identifying code (1–9 chars, as defined in the leader), plus a variable length string containing the data.
Read more about this topic: ISO 2709
Famous quotes containing the word fields:
“Over the tree-tops I float thee a song,
Over the rising and sinking waves, over the myriad fields and the
prairies wide,
Over the dense-packed cities all and the teeming wharves and ways,
I float this carol with joy, with joy to thee, O death,”
—Walt Whitman (18191892)
“Luxurious Man, to bring his Vice in use,
Did after him the World seduce:
And from the fields the Flowrs and Plants allure,”
—Andrew Marvell (16211678)
“I have passed down the river before sunrise on a summer morning, between fields of lilies still shut in sleep; and when, at length, the flakes of sunlight from over the bank fell on the surface of the water, whole fields of white blossoms seemed to flash open before me, as I floated along, like the unfolding of a banner, so sensible is this flower to the influence of the suns rays.”
—Henry David Thoreau (18171862)