"Unconstrained use of multimedia
results in user interfaces that confuse users and make it harder
for them to understand the information" Nielsen, UseIt.com
We automatically attend to visual evidence of movement
(can be distracting)
What is animation good for?
Show continuity in transitions (education: algorithm
visualisation)
Indicate dimensions in navigation (site relative)
Illustration of change over time (page loading)
'Multiplexing' the display (floating help)
Enhancing functionality explanation (icon comprehension)
Visualising 3D structures (complex site maps)
Attracting attention (warnings)