The NorZIG Profile for SRU

Version 1.1 Draft 2, 2011-03-02


This document describes the NorZIG profile for SRU (Search/Retrieval 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.anyIndexes as the default index when responding to term-only CQL queries.

If an index used in a CQL query is not supported in the native database, the server must fail the search and return diagnostic number 16 (Unsupported index) from the SRU List of Diagnostics.

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

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
Bibliographic searching 1.0 bib info:srw/cql-context-set/1/bib-v1
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 Access point2 Modifier Values Bib-1 Use attribute3
cql.anyIndexes Any 1016
bib.audience Intellectual level 1213
bib.classification Dewey, UDC, Local class number bib.classAuthority dewey, udc, local 13, 14, 20
dc.creator Author bib.role 1003 Date of publication (year) 31
bib.genre Literary form 6303
dc.identifier ISBN, ISSN, National bibliography number, Doc-id bib.identifierAuthority isbn, issn, nb, local 7, 8, 48, 1032
rec.identifier Local Number 12
dc.language Language code 54
bib.nameConference Conference Name, Author name (conference) bib.role creator 3, 1006
bib.nameCorporate Corporate name, Author name (corporate) bib.role creator 2, 1005
dc.subject Subject 21
dc.title Title 4
bib.titleSeries Title series 5

Character Encoding

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


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
normarc info:lc/xmlns/marcxchange-v1 The MarcXchange schema4


  1. 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).
  2. The access point names correspond to the names used in the NorZIG Z39.50 Profile version 2.1.
  3. These attributes are fully described in the document Attribute Set Bib-1 (Z39.50-1995): Semantics.
  4. The format attribute of the record elements must have the value normarc.