Over deze norm
This part of ISO 9241 gives guidelines for physical input devices for interactive systems. It provides guidance based on ergonomic factors for the following input devices: keyboards, mice, pucks, joysticks, trackballs, trackpads, tablets and overlays, touch sensitive screens, styli, and light pens, voice controlled devices, gesture controlled devices (see. 6.1.1). This part of ISO 9241 defines and formulates ergonomic principles valid for the design and use of input devices. These principles are to be used to generate recommendations for the design of products and for their use. For some applications, e.g. in areas where safety is the major concern, other additional principles may apply and take precedence over the guidance given here. This part of ISO 9241 also determines properties of input devices relevant for usability including functional, electrical mechanical, maintainability and safety related properties. Also included are aspects of interdependency with the use environment and software. Any of these properties that may be subject to other regulations or standards are considered following the example of electrical properties. The standard considers the following properties: - properties influenced by overriding considerations, e.g. electrical safety, and thus cannot be influenced by the designer; - properties that may impair usability, e.g. thickness of the cabling for a mouse or the weight of batteries of hand-held devices. To be able to formulate recommendations for groups or types of input devices, a set of typologies is introduced based on aspects according which possible designs can be differentiated: - physical variables carrying the information (relative/absolute position, force, velocity, acceleration, etc.); - bodily part used for operation; - dimensionality of control (degrees of freedom); - multiplicity of control (number of parallel control variables); - control modality (discrete/continuous); - control monitoring (one-shot or continuous time, holds last value or returns to nominal value, sequential or "skip-out" the continuum output, etc.); - control distance function (monotonic, non-monotonic, uni/bipolar, etc.); - literalness of control (mapping); - psychological nature of control (causality, exploratory or goal-oriented control).
|Nederlandse titel||Ergonomie van de mens-systeeminteractie - Bedieningsmiddelen - Deel 400: Uitgangspunten, inleiding en algemene ontwerpeisen|
|Engelse titel||Ergonomics of human-system interaction - Physical input devices - Part 400: Guiding principles, introduction and general design requirements|