Document (#30038)

Author
Kaiser, S.
Title
Retrokonversion des Quartkatalogs abgeschlossen
Source
BuB. 58(2006) H.5, S.336-338
Year
2006
Abstract
Für die Retrokonversion des nach allgemeiner Einschätzung wichtigsten Katalogbestandes in Bayern, der noch nicht online verfügbar ist - des Quartkatalogs der Bayerischen Staatsbibliothek (BSB) -, sollte die Zeit des Systemwechsels vom noch großrechnerbasierten BVB-KAT auf ein neues Bibliothekssystem genutzt werden.
Content
"Angesichts des Alters (18401952), der Menge (2,3 Millionen Katalogblätter im Quartformat, daher der Name Quartkatalog) und der Schwierigkeit der Vorlagen (über neunzig Prozent handschriftlich) bot es sich für die BSB an, längere Zeit zu prüfen, welches Retrokonversionsverfahren für das geplante Vorhaben am besten geeignet ist unter besonderer Berücksichtigung von Projektdauer, Kosten und unverzichtbarer hoher Qualität der bei der Retrokonversion erstellten Titeldaten. Sorgfältige Vorarbeiten hatten ein Verhältnis von 65 Prozent Zutragungen zu vorhandenen BVB Titeldatensätzen und 35 Prozent Neuaufnahmen prognostiziert. Als entscheidend für den Konversionserfolg wurde daher eine sehr hohe Genauigkeit bei der Entscheidung Neuaufnahme/ Zutragung angesehen, eine hohe Nachvollziehbarkeit der Rechercheentscheidungen sowie die Vermeidung von Dubletten in der Verbunddatenbank. Vor diesem Hintergrund fiel die Entscheidung zu einem Retrokonversionsverfahren unter Ausspeicherung der vorhandenen BVB-Daten, darunter die von der Deutschen Bücherei Leipzig und der Staatsbibliothek Preußischer Kulturbesitz übernommenen Altdaten, mit besonderem Fokus auf die Qualitätssicherung durch den auszuwählenden Dienstleister. In einer europaweiten Ausschreibung wurde im Oktober 2002 der Anbieter Satz-Rechen-Zentrum (SRZ Berlin) ausgewählt, der in den Jahren 1996-1997 bereits die Retrokonversion des IFK der BSB (2,2 Millionen Karten im internationalen Format) erfolgreich bewältigt hatte. Von Dezember 2002 bis Juli 2003 wurden die Katalogschränke sukzessive nach Berlin transportiert, um an zwei für diesen Zweck speziell gebauten Durchzugsscannern 2,3 Millionen Quartblätter mit Vorder- und Rückseite in 256 Graustufen zu digitalisieren. Die insgesamt 4,6 Millionen Bilder (images) umfassen ein Datenvolumen von 221 GByte."
Theme
OPAC
Object
BSB-Quartkatalog
Location
D
München

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