The NorZIG Profile for SRU

Version 1.0 Draft 4, 2008-01-31

Introduction

This document describes the NorZIG profile for SRU (Search/Retrieve via URL)¹. The profile is based on the NorZIG Z39.50 Profile Version 2.1.

The purpose of the document is to promote interoperability between Norwegian SRU services. The intended audience is implementers of such services in Norway.

NorZIG is an acronym for the Norwegian Z39.50 Interest Group.

Basic Requirements

NorZIG-compliant servers must support the SRU base profile and CQL level 1 in addition to the requirements described in this document.

NorZIG-compliant servers must choose cql.anywhere as the default index when responding to term-only CQL queries.

The NorZIG context set

NorZIG-compliant servers must support the full NorZIG context set.

The recommednded prefix for the NorZIG context set is norzig and its unique identifier is http://www.norzig.no/cql/norzig/1.0/.

Indexes from other context sets

In addition to the NorZIG context set, NorZIG-compliant SRU servers must support CQL queries using several indexes from other context sets. These context sets are:

Context set	Version	Short name	Identifier
Bath	2.0	bath	http://zing.z3950.org/cql/bath/2.0/
CQL	1.2	cql	info:srw/cql-context-set/1/cql-v1.2
Dublin Core	1.1	dc	info:srw/cql-context-set/1/dc-v1.1
Record metadata	1.1	rec	info:srw/cql-context-set/2/rec-1.1

The following indexes and modifiers must be supported:

Index name	Context set	Access point²	Bib-1 Use attribute³
anyIndexes	cql	Any	1016
conferenceName	bath	Conference Name	3
corporateName	bath	Corporate name	2
creator	dc	Author	1003
date	dc	Date of publication (year)	31
identifier	dc	ISBN, ISSN	7, 8
identifier	rec	Local Number	12
possessingInstitution	bath	Possessing institution	1044
subject	dc	Subject	21
title	dc	Title	4

Character Encoding

The response documents from NorZIG-compliant SRU servers must be UTF-8 encoded.

Retrieval

NorZIG-compliant SRU servers must support at least the following record schemas:

Short name	Identifier	Description
dc	info:srw/schema/1/dc-v1.1	The Dublin Core schema
marcxml	info:srw/schema/1/marcxml-v1.1	The MarcXML schema
marcxchange	info:lc/xmlns/marcxchange-v1	The MarcXchange schema

Notes

The acronym SRU refers to the three transport mechanisms SRU via HTTP GET, SRU via HTTP POST and SRU via HTTP SOAP (formerly known as SRW).
The access point names correspond to the names used in the NorZIG Z39.50 Profile version 2.1.
These attributes are fully described in the document Attribute Set Bib-1 (Z39.50-1995): Semantics.