title: Approaches to estimating user exclusion.
authors.affiliation: Cambridge Engineering Design Centre, University of Cambridge, UK. Electronic address: pjc10@cam.ac.uk.
authors.forename: P John
authors.initials: PJ
authors.lastname: Clarkson
authors.affiliation: Cambridge Engineering Design Centre, University of Cambridge, UK.
authors.forename: Sam
authors.initials: S
authors.lastname: Waller
authors.affiliation: TU Delft, The Netherlands.
authors.forename: Carlos
authors.initials: C
authors.lastname: Cardoso
mesh_terms: D003132:Commerce; D003258:Consumer Behavior; D006233:Persons with Disabilities; D004867:Equipment Design; D006804:Ergonomics; D006801:Humans; D008962:Models, Theoretical; D015397:Program Evaluation / Q000379:methods*