Characteristics of Users
a user is someone who uses a computer systmes
ITC systems should be desigbsed and devlopeed to be a easy to user freindsly as possbily
user requeriments are dependen upon the user
Evvroiment of uses
task t be undertake
when somethink new is introued most user will need to be trained to uses it
dependisng upon previous experince using ITC will inpact on the desgig of the ITC soultion and what traning need to be undertaken
evyone need to be able to ues computers.
sensory inpairmetns- consding font and font size. may also need screen reader
physclai dissblt voci activated sofwear head mounted pointers
enviroment of uses
ITC many be used
on the move
requiment of ITC system must take this into account
laptop is genaeraly smaller than a desktop computer. so a systems would have less cluttered screen design if it manly used on laptop
task to be undertaken
ITC system will designed with a common task taken into accout
if there is a lot text to be entred could a automatic methods of date enery be used.
such as OCR(optical character recgroisation) or
OMR optial mark recogstion
you would not deesigne an interface aimed at priamry school child in the same way as for an adult user.
due to poople liveing longer. this then mean that they are more older poople who want to use ITC systems. either out of own intreset or out of necessity.
this would inckde takeing into consideration user experience accessilbl option. such as a screen reader
consdier you user diffrent ages, nationattlies, siuations abbillites experience ETC.
use plain laguage
expalin diffculft words or phases (glossary)
abbillity to uses a screenreader.
abillity to chagne text size.
abily to chage colour contrast
GUI ( graphical user interface)
CDI (command driven interfaces)
CLI (command line interface)
natural lanagauge interface
the most popular human computr interface use by sofwear manufacuers for sysyems and appliaction sofwear. with the GUI the mouse is used as the main input devises.
a GUI consisits.
drag and drop
the user has to remember and issue commands to ICT system to get it do something.
sometimes the commands are entred using th keyboard and sometimes they entered using list of commands.
natural language interfaces
allow the abiiyl for user to issue instuiti to tge OCT sysmes in the sma eway we cna issues nstrcutin to another human being
type of help
on line help
- face to face
- paper based guids
exsting user base- asking those aroudn you