title: A model-based approach to the specification of computer-based communication aids.
abstract: This paper describes and discusses a strategy for the design of an expressive communication aid for the non-vocal which is highly flexible and which embodies the principle of user-specifiable function. Some of the implications which arise when an intuitively common system configuration is adopted in practice are examined. It is shown that a principal feature of the design process and subsequent assessment of the system is the way in which modelling of processes, mechanisms or functions provides a common focus for establishing the important criteria for system design and evaluation of its applicability.
authors.affiliation: Electronic Engineering Laboratories, University of Kent, Canterbury, UK.
authors.forename: M C
authors.initials: MC
authors.lastname: Fairhurst
authors.forename: C
authors.initials: C
authors.lastname: Stephanidis
mesh_terms: D003143:Communication Devices for People with Disabilities; D004867:Equipment Design; D008962:Models, Theoretical; D012656:Self-Help Devices; D014584:User-Computer Interface