boudrez - preserving websites controlling the life

7/29/2019 BOUDREZ - Preserving Websites Controlling the Life

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Preserving websites:

controlling the life-cycle

Filip Boudrez

ErpaSeminar: Preserving the web

Kerkira, 23th May 2003


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TOC

1. Archival questions and answers:

1.1 archiving the original?

1.2 archiving the record!

1.3 snapshot preservation

2. Archiving antwerpen.be

2.1 current procedure

2.2 preservation legacy websites

2.3 storage

3. Accessing antwerpen.be


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1.1 Archiving the original?

Wanted: the original!

static websites

dynamic/interactive websites:

different contents original: server version ?

client version ?

websites designed for specific browserse.g. Dynamic HTML Static W3C HTML


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1.2 Archiving records!

snapshot

webbrowser, plug-ins (PDF-reader,

Flash-player, )

serverscripts, executables,stylesheets,

tools

logic

data/content

logfiles

deep web

transactions

flat files,

XML

identification ofrecords + appraisal

selective approach


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1.3 Snapshot preservation

Browsable off-line snapshot: undo website fromwebserver and back-end- platform independant preservation

- tool: harvester / off-line browser

Preservation of a webbrowser independant version standard file formats

official (X)HTML-tags and attributes

avoid vendor/software specific features

Long-term preservation: migration: feasible?

webbrowser emulation


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1.3 Snapshot preservation

Drawbacks of snapshot approach:

- loss of functionality document in metadata

- intervals: changes / versions in between?

- practical problems

- technology dependant websites: DHTML, Flash

filming ? preserving static version? emulation?


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2.1 Archiving current antwerpen.be

creation / design:9make archivable websites

9 registration of metadata: within webpages

external documentation

9awareness: logfiles, e-mails, deepweb

management9outdated information? changes?

9 controlled environment

9keeping documentation


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archiving:

9quality requirements?

9practical issues?

9archiving action:

when ?

who ?

what ?

9organisation of the website

archive


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NOK

checking links

broken anchors?

missing files?

file formats?

inspection

transferremove website

OK

add metadata +export as XML

adjust portalsite

capture websitecollect metadata

website: pull/push

metadata: Excel-formMETADATA

Editorial boardEditorial board

Content responsiblesContent responsiblesWebmastersWebmasters

informingregister metadata

Archival serviceArchival service


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2.2 Archiving legacy antwerpen.be

Version 1.5/2: - rebuild backup computer

- manual adjusting hyperlinksabsolute document-relative

- migration of obsolete formats

- too much files preserved

- incomplete metadata

Version 3: - definitive loss

Version 4: - manual adjusting hyperlinksabsolute root-relative

- back on webserver: creation ofsnapshot

absolute document-relative


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2.3 Storage

in EDMS: storage, no consultation possible

on server: storage + consultation

on optical medium:

CD: ISO-9660 limitations length folder- and filenames

DVD: UDF standardisation

on tape: slow


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3. Accessing archived antwerpen.be


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More information?

http://www.antwerpen.be/david

[email protected]

boudrez - preserving websites controlling the life

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