This book constitutes the strictly refereed post-workshop documentation of the ECAI'96 Workshop on Dialogue Processing in Spoken Language Systems, held in Budapest, Hungary, in August 1996, during ECAI'96. The volume presents 16 revised full papers including a detailed introduction and survey paper by the volume editors. The papers are organized in sections on foundations of spoken language dialogue systems, dialogue systems and prosodic aspects of spoken dialogue processing, spoken dialogue systems-design and implementation, and evaluation of systems. The book reports on work being pursued both in academia and in industry as a crucial issue in speech processing.