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When testing the first prototype which combines high and low-level navigation styles we found that once in a low-level navigation mode users found it difficult to switch back to high-level navigation style. Our second type prototype aims to provide more accessible low-navigation control for the three exploration modes: google earth view, images and tweets. Additionally, the second prototype removes internal inconsitencies between labels and buttons; adds safety pop up windows to facilitate adding/saving messages and exiting modes; minimises the number of icons and controls. Although we did not encounter issues with the interface being overcrowded, knowing that our targeted user group is mainly elderly we want to maximise the easy of navigation by minimising cognitive load.
User testing observations (Round 2):
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