Tobias Haug is a professor for sign language and participation of the deaf and hard-of-hearing at the University of Teacher Education in Special Needs, Zurich. His main research include sign language assessment, more specifically rater behavior, automatic sign recognition and assessment, web-based testing, targeting both young and adult learners of sign language, and sign language interpreting. Wolfgang Mann is a Reader in Special and Inclusive Education at the University of Roehampton, specializing in signed language development and assessment. His other interests include the wider impacts of experiencing a language problem, specifically language development and language difficulties in deaf children, bilingual-bimodal education, online reading, and computer-and mobile-assisted language testing. Ute Knoch is an Associate Professor and the Director of the Language Testing Research Centre at the University of Melbourne. Her research interests are in the areas of rating processes, test validity, assessing languages for academic and professional purposes, and placement testing.