Difference between revisions of "Profile Guide Step 2.3"

Revision as of 10:07, 30 October 2008 (view source) WikiSysop (Talk | contribs) ← Older edit		Latest revision as of 08:50, 9 December 2008 (view source) Nate (Talk | contribs) (→‎MARS 2.0 Leader & Fixed Field Updates Table)
Line 17:		Line 17:
	| = fill character		| = fill character
−	Format codes are as follows:	+	Format codes are as follows (see [[Record_Format|Record Format]] for more details):
	BK = Books		BK = Books
	CF = Computer files/Electronic resources		CF = Computer files/Electronic resources

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Latest revision as of 08:50, 9 December 2008

Step 2.3 Question

Leader & Fixed Field Updates

MARS 2.0 Update processing provides a variety of updates and corrections to values in the Leader and fixed fields (006, 007, 008). Indicate whether or not to perform Leader & Fixed Field updates.

You may also elect to modify the standard fixed field updates by making a copy of the fixed field update chart, describing desired changes and returning a copy of the edited chart with your profiles.

Fixed Field Updates

Changes to MARC21 replaced many fixed field values or made them obsolete. In the leader, for example, the value p designating a “Record in partial ISBD form” in byte 18, Descriptive Cataloging Form, was made obsolete in 1987 and is now coded using value I (ISBD). MARS 2.0 Update converts an h value in Leader byte 18 to i.

Bytes 18 (Frequency) and 19 (Regularity) in the 008 fixed field for Computer files/Electronic resources format materials were made obsolete in 1995. Additionally, 008 bytes 18-19 are undefined (should not be used) for Mixed materials format. The MARS 2.0 Update software, therefore, converts any values in 008 bytes 18-19 to blanks for Computer files/Electronic resources and Mixed materials records.

MARS 2.0 Leader & Fixed Field Updates Table

In the following table, byte position is counted with the first byte being “00” (zero) to be consistent with MARC21 Bibliographic Format documentation. The table uses the following symbols:

	#	=	blank space
	|	=	fill character

Format codes are as follows (see Record Format for more details):

	BK	=	Books
	CF	=	Computer files/Electronic resources
	MP	=	Maps
	MU	=	Music
	CR	=	Continuing resources (serials, etc.)
	VM	=	Visual materials
	MX	=	Mixed materials (includes obsolete Archival and Manuscripts control)

Note: ‘x’ denotes record types affected

Leader

Byte	From	To	BK	CF	MP	MU	CR	VM	MX
06	h b n	a	x	x	x	x	x	x	x
18	p	i	x	x	x	x	x	x	x
18	r	i	x	x	x	x	x	x	x

006 Field

Byte	From	To	BK	CF	MP	MU	CR	VM	MX
All	hex ‘00’	#	x	x	x	x	x	x	x
06	any	#						x
07	any	#			x			x
08	any	#						x
09	any	#						x
10	any	#						x

007 Field

Byte	From	To	BK	CF	MP	MU	CR	VM	MX
All	hex ‘00’	#	x	x	x	x	x	x	x
02	any	#	x	x	x	x	x	x	x

008 Field, pos. 06-22

Byte	From	To	BK	CF	MP	MU	CR	VM	MX
All	hex ‘00’	#	x	x	x	x	x	x	x
06	c	t	x	x	x	x		x	x
06	d	e	x	x	x	x		x	x
18	any	#		x					x
18	h	c			x
19	any	#		x					x
19	h	c			x
20	any	#		x			x		x
20	h	c			x
20	any	#					x
21	a	#				x
21	any	#		x				x	x
21	h	c			x
22	any	#							x
22	ghixz	#					x
22	uv	#	x			x

008 Field, pos.23-25

Byte	From	To	BK	CF	MP	MU	CR	VM	MX
23	any	#		x				x
23	ghiz	#	x			x	x		x
23	jpt	#							x
23	x	#				x
24	any	#		x	x			x	x
24	h	f	x
24	j	i				x
24	n	#				x
24	y	#	x				x
24	x	t	x
24	3	k	x				x
24	4	q	x				x
25	any	#		x				x	x
25	h	f	x
25	j	i				x
25	n	#				x
25	y	#	x				x
25	x	t	x
25	3	k	x				x
25	4	q	x				x

008 Field, pos.26-27

Byte	From	To	BK	CF	MP	MU	CR	VM	MX
26	any	#			x			x	x
26	h	f	x
26	j	i				x
26	n	#				x
26	y	#	x				x
26	x	t	x
26	3	k	x				x
26	4	q	x				x
27	any	#		x	x			x	x
27	h	f	x
27	j	i				x
27	n	#				x
27	y	#	x				x
27	x	t	x
27	3	k	x				x
27	4	q	x				x

008 Field, pos.28-34

Byte	From	To	BK	CF	MP	MU	CR	VM	MX
28	any	#							x
28	n	o	x				x	x
28	j	i				x
28	n	#				x
29	any	#		x					x
29	j	i				x
29	n	#				x
30	any	#		x	x		x	x	x
31	any	#		x			x	x	x
32	any	#	x	x	x	x	x	x	x
33	any	#		x					x
33	abcdfghmq	z			x
33	E	V						x
33	#	0	x
34	any	#		x		x			x
34	abcdfghmq	z			x
34	dmt	#					x
34	#	n						x

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