HUMAN-COMPUTER NTERACTION Ergonomics Study of the physical characteristics of interaction also known as human factors but this can also be used to mean much of hci Ergonomics good at defining standards and guidelines for constraining the way we design certain aspects of systems
Ergonomics • Study of the physical characteristics of interaction • Also known as human factors – but this can also be used to mean much of HCI! • Ergonomics good at defining standards and guidelines for constraining the way we design certain aspects of systems
HUMAN-COMPUTER NTERACTION Ergonomics-examples arrangement of controls and displays e.g. controls grouped according to function or frequency of use, or sequentially surrounding environment e.g. seating arrangements adaptable to cope with all sizes of user health issues e.g. physical position, environmental conditions (temperature, humidity), lighting, noise, o use of colour e.g. use of red for warning, green for okay awareness of colour-blindness etc
Ergonomics - examples • arrangement of controls and displays e.g. controls grouped according to function or frequency of use, or sequentially • surrounding environment e.g. seating arrangements adaptable to cope with all sizes of user • health issues e.g. physical position, environmental conditions (temperature, humidity), lighting, noise, • use of colour e.g. use of red for warning, green for okay, awareness of colour-blindness etc
HUMAN-COMPUTER NTERACTION Industrial interfaces Office interface ys, industrial interface Context matters office industrial type of data textual numeric rate of change slow fast environment clean dirty the oil soaked mouse!
Industrial interfaces Office interface vs. industrial interface? Context matters! office industrial type of data textual numeric rate of change slow fast environment clean dirty … the oil soaked mouse!
HUMAN-COMPUTER NTERACTION Glass interfaces o industrial interface traditional dials and knobs now... screens and keypads glass Intertace t cheaper, more flexible, Vessel B Temp multiple representations, precise values 0 100 200 not physically located oss of context 113 complex interfaces may need both multiple representations of same information
Glass interfaces ? • industrial interface: – traditional … dials and knobs – now … screens and keypads • glass interface + cheaper, more flexible, multiple representations, precise values – not physically located, loss of context, complex interfaces • may need both Vessel B Temp 0 100 200 113 multiple representations of same information
HUMAN-COMPUTER NTERACTION Indirect manipulation office- direct manipulation user interacts with artificial world system industrial -indirect manipulation user interacts with real world through interface interface plant issues feed back immediate delays feed back nstruments
Indirect manipulation • office– direct manipulation – user interacts with artificial world • industrial – indirect manipulation – user interacts with real world through interface • issues .. – feedback – delays system interface plant immediate feedback instruments