METADATA & META TAGS Presented by Jong Hun Kim INF 385E Information Architecture and Design I September 28, 2004.

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Presentation transcript:

METADATA & META TAGS Presented by Jong Hun Kim INF 385E Information Architecture and Design I September 28, 2004

What is Metadata? Data about data Information about information Kind of information that helps people find what they are looking for Describes a resource -What it is -What it is about -Where it is

Example Catalog record Author: Arnold, Eve. Title: Marilyn Monroe: An appreciation Publisher: New York: Knopf, 1987 Item Locn: Central Quarto Call No: PN2287. M69 A Status: AVAILABLE Descript: 141 p : ill. (some col.) ;30cm Subject: Monroe, Marilyn, ISBN:

Major Aspects of Metadata Description of resource - Depend on type of resource and purpose of metadata Production of Metadata - Summary of the data produced by various level of intelligence Use of Metadata - Access and use

Use of Metadata To summarize the meaning of the data To allow users to search for the data To allow users to determine if the data is what they want To prevent some users from accessing data To instruct how to interpret the data To give contact information about the data To control the management of the data To indicate relationships with other resources To give the history of data

Dublin Core Metadata Standard To promote and develop the metadata elements Fifteen Elements- Title Author or Creator Subject and Keywords Description Publisher Other Contributor Date Resource type Format Resource Identifier Source Language Relation Coverage Rights Management

What is Meta Tags? Tags to describe various aspects about a web page Inform of metadata to be added to web pages All meta tags place within the head section General Syntax

An Example of Meta Tags Meta Tags-Metadata Elements

Meta Tags to Provide Information Description Author Keywords Robots All- Robots can index the pages None- Robots should ignore the page Noindex-Prevents indexing of a page Follow-Robots can follow links from this page Nofollow-Robots cannot follow links from this page

Meta Tags to Control the Browser Expire Pragma and Cache Control Refresh

The use and promotion of metadata can improve the effectiveness of information retrieval

References DC. Dublin Core Metadata Set Home Page, W3C World Wide Web Consortium The IFLA Metadata Resources page Meta tags can index, organize your Web pages Knight, Jon & Hamilton, Martin. Dublin Core Qualifiers, Danny Sullivan How To Use HTML Meta Tags December 5, 2002 Metadata and Search engines, The University of New England