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5.D.1. Functional Area D: Level 1 Authority Record Search and Retrieval

Level 1 defines search and retrieval requirements for Z39.50 clients and servers and includes name, title, and subject searches that enable robust heading searches across library catalogs.

Z39.50 Version 3 is recommended. Level 1 requires Z-clients and Z-servers to support SCAN.

Level 1 Search requires the ISO Latin-1 character set for encoding the query term.

Level 1 Retrieval requires:

• Z-clients to support MARC 21 and SUTRS. (UNIMARC support is also recommended).
• Z-servers to support MARC 21. (SUTRS may be returned instead of MARC 21 if there are business.
• reasons why MARC 21 cannot be returned to all clients. UNIMARC support is also recommended).
• Z-clients and Z-servers to support the character set defined for use with the record syntax.

Level 1 searching requires the following bib-1 Attributes Types and Values:

Combinations of these Attributes Types and Values express the semantics of the following fourteen Level 1 searches (more completely specified below):

5.D.1.1. Name Search -- Keyword

Use: Searches for complete word in headings (or references) for people, corporate bodies, conferences, and geographic names.

Attribute type	Attribute values	Attribute names
Use (1)	1002	Name
Relation (2)	3	equal
Position (3)	3	any position in field
Structure (4)	2	word
Truncation (5)	100	do not truncate
Completeness (6)	1	incomplete subfield

5.D.1.2 Name Search -- Keyword with Right Truncation

Use: Searches for complete word beginning with the specified character string in fields that contain the name of a person or entity associated with a resource.

Attribute type	Attribute values	Attribute names
Use (1)	1002	Name
Relation (2)	3	equal
Position (3)	3	any position in field
Structure (4)	2	word
Truncation (5)	1	right truncation
Completeness (6)	1	incomplete subfield

5.D.1.3 Name Search -- Exact Match

Use: Searches for the complete string as specified in fields that contain a name of a person or entity associated with a resource. This search is needed to conduct a follow-up search when the user selects terms from a name index (e.g., from a SCAN).

Attribute type	Attribute values	Attribute names
Use (1)	1002	Name
Relation (2)	3	equal
Position (3)	1	first in field
Structure (4)	1	phrase
Truncation (5)	100	do not truncate
Completeness (6)	3	complete field

5.D.1.4. Name Search -- First Characters in Field

Use: Searches for the specified character string in fields that contain a name of a person or entity associated with a resource. The field must begin with the specified character string. This search is useful when the searcher wants to retrieve all names beginning with a common stem or when a partial complete name is known (e.g., complete last name, initial of first name).

Attribute type	Attribute values	Attribute names
Use (1)	1002	Name
Relation (2)	3	equal
Position (3)	1	first in field
Structure (4)	1	phrase
Truncation (5)	1	right truncation
Completeness (6)	1	incomplete subfield

5.D.1.5. Title Search -- Keyword

Use: Searches for complete word in a title of a work or uniform title.

Attribute type	Attribute values	Attribute names
Use (1)	4	Title
Relation (2)	3	equal
Position (3)	3	any position in field
Structure (4)	2	word
Truncation (5)	100	do not truncate
Completeness (6)	1	incomplete subfield

5.D.1.6. Title Search -- Keyword with Right Truncation

Use: Searches for complete word beginning with the specified character string in fields that contain a title of a work or uniform title.

Attribute type	Attribute values	Attribute names
Use (1)	4	Title
Relation (2)	3	equal
Position (3)	3	any position in field
Structure (4)	2	word
Truncation (5)	1	right truncation
Completeness (6)	1	incomplete subfield

5.D.1.7. Title Search -- Exact Match

Use: Searches in fields that contain a title of a work or uniform title for an exact match on the complete string as specified. This search is useful for one or two word titles, often series, where a less precise search may retrieve a very large result set. This search is also needed to conduct a follow-up search when the user selects terms from a full title index (e.g., from a SCAN).

Attribute type	Attribute values	Attribute names
Use (1)	4	Title
Relation (2)	3	equal
Position (3)	1	first in field
Structure (4)	1	phrase
Truncation (5)	100	do not truncate
Completeness (6)	3	complete field