VisualCat:Cataloguing with XML, RDF, FRBR & Z39.50

NORD I&D 2001 Poul Henrik Jørgensen, mailto:phj@

dbc.dk

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 2

Background

Danish national bibliography maintained and operated by Danish Bibliographic Centre www.dbc.dk

VisualCat system developed by Portia www.portia.dk

British Library and Italian National Libraries use VisualCat in ONE-2 project www.one-2.org

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 3

Stand-alone cataloguing system supporting Z39.50 union catalogue profile

Simple to use for occasional cataloguers and effective tool for experienced staff

Easy customisation of user-interface, record formats and validation rules

Full UNICODE support

Based on open standards

Utilise windows/NT infrastructure tools

Requirements

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 4

Features

Z39.50 configured by ExplainLite XML dataMARC formats handled by XML schemasMARC editing handled with DHTML and CSSMARC validation by XML schemas and XSLContext sensitive help via URL & webEditing arbitrary scripts in UNICODEZ39.50 search, retrieval & updateAuthority control managed by RDF schemas for IFLA FRBR – or any other ontology

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 5

Information Flow

Z-Server Search

VisualCat

XML/RDF Database

Z-Server Update

Z39.50 Z39.50

MS RDS/ADO

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 6

XML Schemas for MARC

Separate XML Element types for each combination of MARC Field & Sub fielddanMARC2 XML Schema by DBC & Portia 164 MARC fields and 1189 sub fields XSL Style sheets for semantic validation

MARC21 Schema by British Library & Portia Derived from MARC21 DTD from LC

UNIMARC Schema by Italian National Library & Portia Based on Italian SBN specifications

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 7

MARC21 XML Schema

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Z39.50 Configuration

Dynamic configuration by ExplainLite XML structure from ONE-2 Project

Target URL, Databases, Search attributes including names, Element Sets, Record syntaxes

Search, Retrieve, Scan & Update

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 9

ExplainLite in VisualCat

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 10

Search & Retrieval

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Editing functions

Insert fields and sub fields directly

Edit fields and sub fields directly

Required fields are added to imported records automatically

Empty fields are trimmed automatically

Lists of permitted fields, sub fields and values

Links to context-sensitive help via Web

Records validated for syntax and structure

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 12

Forms based Editing

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Line-format Editing

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Authority Control

RDF schema defines the semantic relationships between classes and propertiesAuthority control data can be described in terms of FRBR entities and relationsVisualCat represents authority data and relations by means of general RDF structures in a databaseOther metadata standards, e.G. Dublin core, may also be used

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 15

RDF Schema for FRBR

Nord I&D VisualCat Poul Henrik Jørgensen May 2001 16

FRBR RDF graph

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Select FRBR Object type

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Search Attribute values

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Attributes & Relations

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Related Objects

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Summary

XML schemas used to validate different MARC formats

Internally all MARC data are XML & RDF

Z39.50 configuration by ExplainLite XML

Z39.50 search, retrieval, scan & update

User interface by CSS and DHTML

Different metadata including IFLA FRBR & DC handled by RDF authority database,