Shriram Pandey

Asst. Professor & In-Charge

MLS University, Udaipur

(CPDL-1/Block-1/Unit-2)

Lesson Plan What are the functional components of a digital

library

Association of technologies at different level of DL

Digital Library Component

Selection and Acquisition

This component include: Selection of documents to be added, digitization

Organization

Key process involved assignments of metadata

Indexing and storage

Carries out indexing and storage of documents and metadata

Repository

Core component of the DL consists document objects, metadata and indexes created for the purpose of search and retrieval

Search and Retrieval Front –end; used by the end users to browse, search,

retrieve and view the content of digital library.

Digital Library Website This is the server computer that hosts the digital library

collection and presents the collection to the user in the form of a website home page.

Network connectivity For online access, the digital library website computer

should have dedicated connection to the intranet and or internet.

Association of Technologies Organization (Assigning Metadata) Preservation

Documents formats and storage Repositories/digital library systems

Dspace, Fedora, CONTENTdm, DLXS, .. Identifiers Standards

URL, PURL, DOI Federation , metasearch and Search Retrieval

standards OAI- PMH/Z39.50/OpenURL/Cross Ref/SRU/SRW

Markup Standards: HTML, SGML, XML Emerging Technologies: Semantic Digital Library

Technology Level: Metadata Characteristics of a

document

Key of locating , using and

processing digital content

Types :

1.Descriptive Metadata

2.Stuctered Metadata

3.Administrative Metadata

1)Metadata Descriptive Metadata

Allows discovery of collection or objects through the use of search tool

Well known DM is : MARC, Dublin Core

Structured Metadata Describes the associations within or among related individual

information objects.

e.g. A book which consists of pages and chapters

Administrative Metadata Facilitates metadata facilities access management and

preservation of digital resources.

Provide a record of how and when an object was created as well as archival and right management information

2)Documents formats and storage Text Format :

ASCII: simple, no formatting, accessible

word processors: formatting, access limited

PDF: formatted, complex, access limited

Image Format: There are a great many image formats.

.BMP .TIF .GIF .PNG .WMF .PICT .PCD .EPS .EMF .CGM

.TGA .JPG

JPG is more general

Sound Formats

.WAV .MID .SND .AUD .mp3

Video Formats

.AVI .MOV .MPG .QT, MPEG4

Web Page

.HTM .HTML .DHTML .HTMLS .XML

Programs

.COM .EXE

Existing OSS DL Software JeromeDL

a social semantic digital library makes use of Semantic Weband Social Networking technologies to enhance bothinteroperability and usability

Dspace

Developed by HP-MIT Alliance, in 2002.Available underBSD(Berkeley Software distribution) license.

Fedora

delivers flexible service-oriented architecture to managingand delivering content in the form of digital objects

Eprints

Developed by School of Electronic and Computer Science,University of Southampton, UK in 2000

Greenstone

Produced by New Zealand Digital Library Project at theUniversity of Waikato, and developed and distributed incooperation with UNESCO and the Human Info NGO.

Semantic Digital Library

VMOU, KOTA

CPDL-1/Block-1/Unit-2