usability design principles

Question 1

usability design principles

Answer 1

visibility of system status
match between system & real world
user control & freedom
consistency & standards
error prevention
recognition rather than recall
flexibility & efficiency of use
aesthetic & minimalist design
help users recognise, diagnose & recover frm errors
help & documentation

Question 2

visibility of system status (usability design principles)

Answer 2

users should be informed of whats going on in the system
by
adding a progress bar / loading animation to show that system is processing request

Question 3

match between system & real world

Answer 3

using clear & simple language & avoiding technical terms

(mayb less monotonous also?) instd of ‘sign up’, ‘yes! i want to learn!’

Question 4

user control & freedom

Answer 4

gives user freedom to undo any accidental mistakes
by
undo, redo, cancel button

eg google flashes msg w undo action after u delete smth, giving a secondary prompt asking if u rly wna remove smth

Question 5

consistency & standards

Answer 5

consistent expected location & style / adopting standard conventions frm other webpages
by
submit button should look the same across the site on any page

font styles thruout the whole page/site shld be the same

Question 6

error prevention

Answer 6

carefully prevent problems frm occurring
by
red underline under words w wrong spelling (data verification)

confirmation pop-up when clicking submit

Question 7

recognition rather than recall

Answer 7

avoid making users remember info by making options visible
through
adding ‘recently used’ ‘favourites’ section for users to access it easily

google suggests possible searches based on what user is typing

Question 8

flexibility & efficiency of use

Answer 8

flexibility btwn novice/new & advanced/expert users such that design caters to both inexperienced/experienced users
through
‘advanced settings’ options

Question 9

aesthetic & minimalist design

Answer 9

ensure that all info presented on page is relevant
(like only having __what__ necessary features = clutter-free experience)

Question 10

help users recognise, diagnose & recover frm errors

Answer 10

gives users clear & concise error msg (precisely indicating a problem & constructively suggesting a soln)

eg when username is wrong –> maybe username already in use
pw wrong -> format wrong (eg lack special char)

Question 11

help & documentation

Answer 11

adequate help shld be provided for users who are unable to navigate thru website wo any documentation
by
help / FAQ page / info icon