元数据guide.docVIP

A Guide to Metadata. About this document This document was prepared by Jenny Slater, former CETIS Metadata SIG co-ordinator. It was last updated on 18/12/02, and all information was correct and up to date at this time. The explanations here are not intended as authoritative and are provided as a guide only. Further references and definitions of the terms used in this document can be found on the http://www.cetis.ac.uk web pages. Contents About this document 1 Contents 1 SECTION 1 : About metadata. 1 Introduction. 1 What are metadata elements? 2 The metadata schema. 2 Metadata and vocabularies. 2 What is a metadata specification? 2 What metadata cannot do. 3 What is metadata used for? 3 Who creates metadata and how is it stored? 4 Metadata for Interoperability (in brief!) 5 SECTION 2 : Creating your own metadata implementation 6 Introduction 6 Step 1: Consider the needs of your project. 6 Step 2: Look at relevant standards and specifications. 6 Step 3: Look at existing practice. 7 Step 4: Create a schema. 7 SECTION 3?: Documenting your implementation 8 Application profiles: what are they? 8 Application Profiles: how do I create one? 8 The Resource Description Framework (RDF) 8 Namespaces 9 Appendix 1 – Metadata elements divided 10 Objective – Subjective Metadata 10 Intrinsic – Extrinsic Metadata 10 Appendix 2 – “Organisations involved on metadata standards” 10 ADL/SCORM 10 ARIADNE 11 British Standards Institute (BSI) 11 CEN/ISSS 11 Dublin Core Metadata Initiative (DCMI) 11 IEEE Learning Technology Standards Committee (LTSC) 12 IMS Global Learning Consortium Inc. (IMS) 12 International Standards Organisation (ISO) 12 SECTION 1 : About metadata. Introduction. The literal meaning of “metadata” is “data about data”. It is also described as structured, descriptive information. Metadata can be used to describe an information resource, an image, a collection or a simulation, amongst a multitude of other kinds of resources. Metadata is often compared to a library catalogue