DL-Application for the University Archive Jena Ulrike Krönert, Mathias Hegner FSU Jena

Overview Project Goals Creation and Use of the Archive Archive Data Model Archive Class Library Current State of the Project Outlook

Project Goals Archive is part of UrMEL Presentation of all FSU archive files in the internet ? Digitization of files for the Weimar classics foundation Workflow test in 2000, September- November Write software for creating, exploiting, and searching the archive

Creation and Use of the Archive Digitization of (selected) files Description of the files by meta-data, files become searchable Scientific exploitation (1): Creating documents Scientific exploitation (2): Creating dossiers on themes

Recording the Archive 36,000,000 pages, 600 dpi, >100 years –360 Tbyte of lossless compressed data –12 Tbytes of highly compressed data Digitization and microfilming in one step Description of the file by hand Automated page loader –.

Exploiting the Archive in Two Steps Step 1: Describing documents, select pages into documents Results: File as a heap of pages becomes a folder of documents Step 2: Summarizing documents, single pages or even whole files Results: Dossiers on selected themes

Data Model Files containing documents Documents containing pages Pages containing the images (parts) Dossiers containing files, documents, pages Generalized text search index for files, documents, dossiers Note part for each object

File Data Model Necessary attributes: archive name, holding name, file number Additional attributes: origin, period, size Parts: file title, keywords, comprise note, remark Text index for all attributes and parts Folder: documents in file

Document Data Model Attributes: page numbers, date, document type, author Parts: reference, remark, co-authors Text index for all attributes and parts Folder: pages in document Help text index containing file pid (for faster search)

Page and Dossier Data Models Page –Page number as an attribute –JPEG-, TIFF- parts –Help text index: document pid Dossier –Dossier title as an attribute –Text index containing dossier title –Folder: objects in dossier

Class Library for Archive Archive object Object collection (*) Browser session (*) Servlet (FsuArchiv) Help classes: access rights, archive user

Archive Objects Object type (file, document, page, dossier) Constructors for persistent and new objects, Destructor open/ close, add/ delete get/ set attributes/ parts isFolder, hasParent, getIndexClass get parent/ items/ dossiers

Object Collections add object(s) delete object(s) sort objects (e.g. by page numbers) manage collection pointer get archive object(s)

Browser Sessions User managing by DL (*) login/ auto logout (after a deadtime) manage access rights get/ set session properties, e.g. session number manage object collections in a collections stack

Servlet Class (FsuArchiv) query parametric/ text/ combined show object attributes and meta- parts update object/ create new parts select digitized page into document add to/ remove from dossier delete object

Outlook using SSL, encrypting password etc. fine-grained access rights for files and dossiers manage payment for archive use multi-medial layout with animations, images etc. Ergonomics of the HTML pages