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5.C.1. Functional Area C: Level 1 Cross-Domain Search and Retrieval

Level 1 inherits all Level 0 search and retrieval requirements. Level 1 enhances keyword searching by providing truncation of words and unanchored phrase searching.

Z39.50 Version 3 is required.

Level 1 Retrieval requires two record syntaxes: SUTRS and the Extensible Markup Language (XML) Record Syntax. For XML, the use of the Document Type Definition (DTD) for Dublin Core Simple (see Appendix B) is required. Retrieval records are structured in Dublin Core Metadata Elements and transferred in the XML Record Syntax using the ESN http://www.collectionscanada.gc.ca/bath/tp-dc-dtd.htm

Level 1 Searching requires support of the following bib-1 Attributes Types and Values:

Combinations of these Attributes Types and Values express the semantics of nine Level 1 Searches detailed below:

• Creator Search -- Keyword with Right Truncation
• Title Search -- Keyword with Right Truncation
• Title Search -- Unanchored Phrase
• Subject Search -- Keyword with Right Truncation
• Subject Search -- Unanchored Phrase
• Any Search -- Keyword with Right Truncation
• Any Search -- Unanchored Phrase
• Standard Identifier Search
• Date of Publication Search

5.C.1.1. Creator Search -- Keyword with Right Truncation

Uses: Searches for complete word beginning with the specified character string in data elements that contain names of entities primarily responsible for making the content of the resource; examples of a Creator include a person, an organisation, or a service.

Attribute Type	Attribute Values	Attribute Names
Use (1)	1003	author
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.C.1.2. Title Search -- Keyword with Right Truncation

Uses: Searches for complete word beginning with the specified character string in data elements that contain the name given to a resource; typically, a Title will be a name by which the resource is formally known.

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.C.1.3. Title Search -- Unanchored Phrase

Uses: Searches for the specified phrase in data elements that contain the name given to a resource; typically, a Title will be a name by which the resource is formally known.

Attribute Type	Attribute Values	Attribute Names
Use (1)	4	title
Relation (2)	3	equal
Position (3)	3	any position in field
Structure (4)	1	phrase
Truncation (5)	100	Do not truncate
Completeness (6)	1	Incomplete subfield

5.C.1.4. Subject Search -- Keyword with Right Truncation

Uses: Searches for complete word beginning with the specified character string in data elements that contain the topic of the content of the resource; typically, a Subject will be expressed as keywords, key phrases or classification codes that describe a topic of the resource.

Attribute Type	Attribute Values	Attribute Names
Use (1)	21	subject heading
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.C.1.5. Subject Search -- Unanchored Phrase

Uses: Searches for the specified phrase in data elements that contain the topic of the content of the resource; typically, a Subject will be expressed as keywords, key phrases or classification codes that describe a topic of the resource.

Attribute Type	Attribute Values	Attribute Names
Use (1)	21	subject heading
Relation (2)	3	equal
Position (3)	3	any position in field
Structure (4)	1	phrase
Truncation (5)	100	Do not truncate
Completeness (6)	1	Incomplete subfield

5.C.1.6. Any Search -- Keyword with Right Truncation

Uses: Searches for complete word beginning with the specified character string in data elements that are commonly used as access points (as defined by the server).

Attribute Type	Attribute Values	Attribute Names
Use (1)	1016	any
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.C.1.7. Any Search -- Unanchored Phrase

Uses: Searches for the specified phrase in data elements that are commonly used as access points (as defined by the server).

Attribute Type	Attribute Values	Attribute Names
Use (1)	1016	any
Relation (2)	3	equal
Position (3)	3	any position in field
Structure (4)	1	phrase
Truncation (5)	100	Do not truncate
Completeness (6)	1	Incomplete subfield

5.C.1.8. Standard Identifier Search

Uses: Searches standard identifiers such as ISBN, ISSN, Music Standard numbers, CODEN, Superintendent of Documents Item Number, etc., but does not identify a specific standard number scheme. A standard number provides an unambiguous reference to the resource within a given context.

Attribute Type	Attribute Values	Attribute Names
Use (1)	1007	identifier-standard
Relation (2)	3	equal
Position (3)	1	first in field
Structure (4)	1	phrase
Truncation (5)	100	Do not truncate
Completeness (6)	1	Incomplete subfield

5.C.1.9. Date of Publication Search

Uses: Searches for the date (year) associated with an event in the life cycle of the resource. Typically, this date will be associated with the creation or availability of the resource.

The Date of Publication Use attribute must be used as a search limiter in conjunction with another operand (i.e., used to limit a search using other Use attribute values). Z-servers may reject a query that only includes the Date of Publication Use attribute.

Attribute Type	Attribute Values	Attribute Names
Use (1)	31	date of publication
Relation (2)	1, 2, 3, 4, 5	less than, less than or equal, equal, greater than or equal, greater than
Position (3)	1	first in field
Structure (4)	4	year
Truncation (5)	100	Do not truncate
Completeness (6)	1	Incomplete subfield