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

METADATA & META TAGS

Presented byJong Hun Kim

INF 385EInformation 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 appreciationPublisher: New York: Knopf, 1987Item Locn: Central QuartoCall No: PN2287. M69 A74 1987Status: AVAILABLEDescript: 141 p : ill. (some col.) ;30cmSubject: Monroe, Marilyn, 1926-1962ISBN: 0394556720

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 <META NAME=“dataname” CONTENT=“datavalue”>

An Example of Meta Tags

<head>

<meta name="description" content=“meta tags."><meta name="keywords" content="meta data, metadata, meta tag, meta-tag, search-engine"><meta name="author" content="Keith Brooke"><meta name="reply-to" content="kbrooke"><meta name="robots" content="all"><title>Meta Tags-Metadata Elements</title></head>

Meta Tags to ProvideInformation

• Description <META NAME=“description” CONTENT=“Meta tags.”>

• Author <META NAME=“author” CONTENT=“Steven Matthiesen”>

• Keywords <META NAME=“keywords” CONTENT=“a, list, keywords”>

• Robots <META NAME=“robots” CONTENT=“all”>

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 <META HTTP-EQUIV=“Expires” CONTENT=“0”>

• Pragma and Cache Control <META HTTP-EQUIV=“Pragma” CONTENT=“no-cache”> <META HTTP-EQUIV=“Cache-Control” CONTENT=“no-cache”>

• Refresh <META HTTP-EQUIV=“Refresh”

CONTENT=“10;URL=http://www.rit.edu”>

The use and promotion of metadata

can improve the effectiveness of information retrieval

ReferencesDC. Dublin Core Metadata Set Home Page,

http://purl.org/metadata/dublin_core, 1997W3C World Wide Web Consortium http://www.w3.org/The IFLA Metadata Resources page http://www.ifla.org/ll/metadata.htmlMeta tags can index, organize your Web pages

http://www8.zdnet.com/pcweek/ir/0113/13jia.htmlKnight, Jon & Hamilton, Martin. Dublin Core Qualifiers,

http://www.roads.lut.ac.uk/Metadata/DCSubElements.html, 1997Danny Sullivan How To Use HTML Meta Tags http://searchenginewatch.com/webmasters/article.php/2167931 December 5, 2002 Metadata and Search engines, The University of New England http://www.une.edu.au/uneweb/guidelines/metadata.htm

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

Documents

Transcript of METADATA & META TAGS Presented by Jong Hun Kim INF 385E Information Architecture and Design I...