5.D.1.SCAN. Functional Area D: Level 1 Use of SCAN
The Z39.50 SCAN Service is required at Functional Area D: Level 1 Search and Retrieval. The following requirements apply for SCAN:
- Z-clients must support Term and DisplayTerm, and display DisplayTerm if sent. If DisplayTerm is not sent, Term must be displayed.
- Required values for parameter preferredPositionInResponse are 0 and 1.
- Stepsize is 0.
Three SCANs are defined:
- Name -- Exact Match
- Title -- Exact Match
- Subject -- Exact Match
Unlike the other searches specified in this Profile, it is not necessary to specify the Relation, Completeness and Truncation attributes of a SCAN.
Guidance in using terms found from a SCAN in a subsequent search can be found at the Maintenance Agency site as a Related Specification/Contribution http://lcweb.loc.gov/z3950/agency/contributions/2.html
5.D.1.SCAN.1. Name -- Exact Match
Uses: To browse an ordered list of name headings.
The termlist for a Name Exact Match SCAN is:
| Attribute Type |
Attribute Values |
Attribute Names |
| Use (1) |
1002 |
name |
| Position (3) |
1 |
first in field |
| Structure (4) |
1 |
phrase |
5.D.1.SCAN.2. Title -- Exact Match
Uses: To browse an ordered list of complete titles.
The termlist for a Title Exact Match SCAN is:
| Attribute Type |
Attribute Values |
Attribute Names |
| Use (1) |
4 |
title |
| Position (3) |
1 |
first in field |
| Structure (4) |
1 |
phrase |
5.D.1.SCAN.3. Subject -- Exact Match
Uses: To browse an ordered list of complete subject headings.
The termlist for a Subject Exact Match SCAN is:
| Attribute Type |
Attribute Values |
Attribute Names |
| Use (1) |
21 |
subject |
| Position (3) |
1 |
first in field |
| Structure (4) |
1 |
phrase |
