1. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Kulturarw³ The Swedish WWW Archive Eller, att fånga den V ärlds V ida V även http://kulturarw3.kb.se

2. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Background Legal deposit, 1661 Latest revision 1993 –only electronic documents in fixed form –CD-ROM, diskettes New law under way –secretary from BIBSAM/KB –Proposal: SOU 1998:111 First Swedish web newspaper lost – printed newspapers 1645 Kulturarw 3 started summer 1996

3. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Goals All www and gopher pages in Sweden –pictures, video etc –.se and generic TLD’s –suecana All articles in electronic journals All Swedish newsgroups / mailing lists Limitations versus RA and ALB

4. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Organisation Project group: two persons Steering group: four persons Reference group: representatives from ALB, RA, Lund Univ, SUNET etc International cooperation –NWA - Nordic Web Archive –Nat. Libraries

5. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Strategy Selection? How to know what is important? Labour intense Collect everything using automatic software Gets everything Less labour intense Computer memory is cheap

6. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Strategy Take snapshots of the Swedish web a few times a year. In the future, take newspapers every day, others every month etc What is Sweden?.se.com,.org and.net with Swedish address/telephone number Swedish.nu (Niue) Suecana

7. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Robot, Software Modified version of Nordic Web Index’s robot software (NetLab, Lunds univ.) Important! indexing is not archiving! Save data in MIME format Temporary storage, media: DLT-tape –Data rate, 5MB/s –Capacity, 20 GB –Durability, 1 000 000 pass –Data integrity, error detection and correction –Low cost per GB stored –Access time too long (?)

8. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Statistics 15 MURL (including duplicates) 240 Gbytes 54 000 sites –32 300.se –14 800.com,.org,.net and.edu –~100 suecana –6 800 Niue Compare, legal deposit –Printed materiel: 1,7 km/year –The web: approx. 50 km on swedish web.

9. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 Statistics 363 different MIME types found. Many the same, some garbage. 7.0 M text/html 4.2 M image/gif 3.0 M image/jpeg 0.3 M text/plain 0.5 M others text/html + image/gif + image/jpeg + text/plain comprises 97% of the documents.

10. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 The Archive Goals –Create copies of the swedish web at several times (compare index services) –Surf the web in space and time –Search –Accessible in the future  migration

11. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 The Archive Disk (Optical disk) Magnetic tape HSM: Most data on magnetic tapes, staged to disk when needed

12. allan.arvidson@kb.se krister.persson@kb.se 1999-06-04 The Archive What are we archiving? –Magnetic tapes? –Bits and bytes ? –Intellectual content?