PT Unknown AU Zedlitz, J TI Web-based collaborative system for transcription of serial historic sources to structured data SE Bericht des Instituts für Informatik PY 1992 VL 1604 PU Institut für Informatik WP https://macau.uni-kiel.de/receive/macau_mods_00002011 LA en SN 2192-6247 AB We present a web-based collaborative system to transcribe serial historic sources to structured data. The web-based system runs completely in the web browser without additional plug-ins. Its key feature is the fact that data entry is performed directly on scanned images: The scan is used as background image of the browser window; it is overlaid by the entry mask as well as text boxes with already transcribed data. The system has been successfully used to transcribe more than 31,000 pages from the German WW1 casualty lists to structured data resulting in more than 8.5 million entries. PI Kiel ER