it_is_on_www

8/9/2019 It_is_on_WWW

1/30

Why Do We Need

to Keep This in Print?

It is on the Web?...:a Review of Electronic Archiving Issues and Problemsa Review of Electronic Archiving Issues and Problems


2/30

INFORMATIONINFORMATION

VANISHESVANISHES


3/30

Libraries == archives ?

Selecting

Organizing

Preserving


4/30

There are NO standardsThere are NO standards

andand

NO agreed-upon solutions !NO agreed-upon solutions !


5/30

Research...


6/30

Costs...?Costs...?


7/30

Cost model:

Data creation Data selection and

evaluation Data management Resource disclosure Data use

Data preservation Rights management


8/30

Cost model summary: Part I.

Data creation costs: A key to this stage is providingadequate documentation of the digital resource.

Data selection and evaluation: Acquisition decisions

include how easily a digital resource can be managed,catalogued, accessed and preserved.

Data managementincludes data documentation,

validation, structure and storage

Resource disclosure: These costs involve discovering,extracting and preparing the object for use


9/30

Cost model summary: Part II. Data use: The structure of the digital resource will determine the

costs of delivering the resource to end users and could involveonline or CD-ROM access.

Data preservation: The main costs include agreeing on thepreferred standard formats; testing the conversion for a specificcategory of resource; running the conversion as a batch process;testing a sample of converted resources; deleting the old versionsif required; copying the resulting files

Rights management: Consideration must be given to intellectualproperty rights and the legal issues of data protection andconfidentiality, which determine issues of access, use, and legalpreservation. These potentially substantial costs can actually bethe highest cost of digital archiving.


10/30

Solutions...

Migration

Emulation

Encapsulation


11/30

Migration Migration is defined as the periodic transfer of digital

materials from one hardware/software configuration toanother, or from one generation of computer technologyto a subsequent generation

Example, the information on a floppy disk may betransferred to a CD-ROM format, offering only atemporary preservation since the CD-ROM format mustthen be migrated when the technology changes again.The digital information must be refreshed withoutchanging it and in a new operating environment the copyis not exactly the same as the original, requiringdecisions about the aspects that need to be preserved.


12/30

Emulation

The essential idea behind emulation is to

be able to access or run original

data/software on a new/current platformby running software on a new/current

platform that emulates the original

platform.


13/30

Encapsulation

Encapsulation can be achieved by usingphysical or logical structures called

'containers' or 'wrappers' to provide arelationship between all informationcomponents, such as the digital object andother supporting information such as a

persistent identifier, metadata, softwarespecifications for emulation.


14/30

OUR COMMENT:

LOTS OF COPIESLOTS OF COPIESKEEP STUFF SAFEKEEP STUFF SAFE


15/30

Idea come from Alexandria Library

Their method may besummarized as:

-Acquire lots of copies.

-Scatter them around theworld so that it is easy to findsome of them and hard tofind all of them.

-Lend or copy your copies

when other librarians needthem.


16/30

In the Internet there is no need to

provide care of old and sensitivematerial


17/30

Broken URL? ...

Solution in IP protocol


18/30

WWW== archive with no book

shelves


19/30

Lots more information can be

caped on the Internet on

comparison with traditional libraries


20/30

Money...?!


21/30

GLOSSARY:


22/30

(technological) obsolescence

Zastarelost Because of the concern of potential

technological obsolescence, there is a

substation amount of printing taking placeof electronic documents as lengthy as 500

pages (both state and federal) both by

librarians and beyond-users.


23/30

(permanent public) access

dostop

Ensuring access implies being able to

control the existence, integrity, andlocation of an item.


24/30

information bank

podatkovna banka Moreover, it severally undermines the

potential promise and usefulness of new

electronic technologies when the long-term consequence of their use is an ever-

widening in our collected knowledge and

information bank.


25/30

Metadata

metapodatki The Colorado Digitalization Project defines

metadata as: data about data or

information known abouth the image inorder to provide access to the image.


26/30

Emulation emulacija

"The essential idea

behind emulation is to be

able to access or run

original data/software ona new/current platform by

running software on a

new/current platform that

emulates the originalplatform"

Emulacija pomeni

poustvarjanje delovanja

zastarelega raunalnika

in operacijskega sistema

na bodoem, neznanem

operacijskem sistemu.


27/30

Encapsulation Enkapsulacija

"Encapsulation can beachieved by using physical orlogical structures called'containers' or 'wrappers' to

provide a relationship betweenall information components,such as the digital object andother supporting informationsuch as a persistent identifier,metadata, software

specifications for emulation"

Metoda enkapsulacije je znana

kot migracija na zahtevo. Sajgre za ohranjanje vsebine vizvorni obliki.


28/30

Cache

predpomnilnik In computer science, a cache is a

component that improves performance by

transparently storing data such that future

requests for that data can be served

faster.


29/30

deep links

globoke povezave

Deep linking, on the World Wide Web, is

making a hyperlink that points to a specificpage or image on another website, instead

of that website's main or home page. Such

links are called deep links.


30/30

it_is_on_www

Documents