This volume presents the complete proceedings of the 31st Conference on Computer Applications and Quantitative Methods in Archaeology held in Vienna in 2003. Over 130 technical and specialised papers are divided into sixteen sections: archaeological processes; archaeological prospection; archaeometry; Computer Aided Design; computer applications in osteology; computerised methods for rescue archaeology; cultural heritage management; cultural heritage and the public; database applications; Geographical Information System; integrating scientific results in archaeological processes; internet applications; photogrammetry; statistic and quantitative methods; survey and Geographical Positioning Systems; virtual reality. The case studies are worldwide and cover all periods.