7 - Indira Gandhi Centre for Atomic Research

4.2 Hyper Text Markup Language (HTML)
HTML is a non proprietary format based on SGML. It can be created and processed in a
wide range of software programs, from simple plain text editors. It is a mark-up
language that uses tags to structure text into headings, paragraphs, lists, and links. It tells a
Web browser how to display text and images. As it was combined with embedded images
and other media , it became increasingly popular. However, its fixed set of features, or
elements and attributes, and its emphasis on presentation proved limiting. It presents data
in a browser window in a multitude of shapes, sizes and colours, and provides extra
features, such as forms and hyperlinks.
4.3 Dynamic Hyper Text Markup Language (DHTML)
DHTML is not a language in and of itself like HTML or JavaScript. It's a method used to
design a web page by mixing HTML, Cascading Style Sheets, Document Object Model
and some scripting language such as JavaScript or VBScript. It is the combination of
several built-in browser features in fourth generation browsers (Internet Explorer 4 (or
higher), Netscape Navigator 4 (or higher) that enable a web page to be more dynamic. It is
not a standard defined by the World Wide Web Consortium, it is a "marketing term" that
was used by Netscape and Microsoft to describe the new technologies the 4.x generation
browsers would support.
4.4 eXtensible Markup Language (XML)
XML is a lightweight cut-down version, simple, very flexible text format of SGML (ISO
8879) which keeps enough of its functionality to make it useful but removes all the
optional features which make SGML too complex to program for in a Web environment. It
designed to meet the challenges of large-scale electronic publishing. SGML and XML
represent a document by tagging the document's various components with their function or
meaning. It supports a wide variety of applications. The number of optional features in
XML is to be kept to the absolute minimum, ideally zero. XML documents should be
human legible and reasonably clear. And Terseness in XML markup is of minimal
importance.
5. Structured data
5.1 Metadata
Metadata is often described as “data about data” or information known about the image in
order to provide access to the image. Usually includes information about the intellectual
content of the image, digital representation data, and security or rights management
information. The Special tagged fields in a document that provide information about the
document to search engines and other computer applications. A metadata record can
include representations of the content, context, structure, quality, provenance, condition,
and other characteristics of an IBO for the purposes of representing the IBO to a potential
user - for discovery, evaluation for fitness for use, access, transfer, and citation.
5.2 Dublin Core
Dublin Core Metadata Element Set consists of 15 descriptive data elements relating to
content, intellectual property and instantiation. The elements are title, creator, publisher,
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