 
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.) Bob's
picture pops out and Joe clicks on
the "Add friend" button to add him.
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, Joe can edit
the place's radius by
manipulating a transparent
circle around the location
bubble. Joe can also edit
the name of the location
such as STATA or Boston by
typing in the location bubble.
(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. Click on the
tab menu to choose different
kinds of aggregated information
(weekly or monthly). | Pros:
1. Adding friends is done in a
similar way as other social apps.
2. The time/map widget makes
very easy to select.It is also
consistent with clock apps
and google maps.
3. The map provides direct
manipulation which allows
user to choose the locations.
4. When user chooses a location
on the map. It provides
immediate feedback by creating
a bubble around the location.
Cons:
1. Do users really need so much
freedom on the permission
settings? | Pros:
1. Minimize the amount of
drop-down menu for permission
setting by using pictures and
maps.
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.
2. It would be too much
work for Joe to type the
name of a location or the
address, auto-complete
could be used here.
| Sources of potential
error in this interface
are that the user
enters the wrong
address, name of
location, or perhaps
enters a invalid time.
The auto-complete
function should help
prevent incorrect
address. In addition,
the engine behind the
interface should
provide hints to users
about the name/radius
of the location users
click on. | The clock widget,
map, and charts
are salient
to users. |