 
Home screen Find for friends by typing in the
search bar
Permission setting page of Joe
for Bob | To add a new social contact,
Joe starts from his home
screen and clicks on "My
friends" button. He finds Bob
by typing his name in the
search bar (which is located
at the upper right corner.)
Joe Joe then sets the permissions
for Bob. For example, in this
scenario,
1. Adjust the time by manipulating
the clock-like interface.
2. Choose the places that are
available for Bob by clicking
on the map.
(a) Click on a new place to
create a new one. At the
same time, you can edit
the place's radius and name,
such as STATA or Boston.
(b) Clicking on an existing
place can either delete it
or edit it.
3. Hide/show aggregated information
by clicking on the chart and the
Hide/show button. | The clock and map are salient
to Joe. | Pros:
1. The clock widget makes
very easy to select the time.
It is also consistent with other
time widget.
2. The map provides
direct manipulation
which allows user to
see
choose the locations
3. When Joe chooses a location
on the map. It provides
immediate feedback
| Pros:
1.
Cons:
1. It might be cumbersome
for users to set the
permissions of each
social contact one by one.
Aggregation should be
used. (ex. group permission
settings.) Efficiency problem
can also be mitigated by
providing default
permission settings. | |
