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Task 4: View aggregate information of social contacts

 Storyboard

Learnability

Efficiency

Safety

Visibility








Joe's mom Alice has access to Joe's city-location
 and wants to view it. She hits People from the
home screen and then selects Joe.
She clicks on the History tab to see a list of
places Joe has been.

Pros:
Since this screen is easily accessible from
that in task 2 (thus
providing internal consistency),
this task is easy to learn.

Pros:
- Relevant information
is presented in an
easily-digestible manner.

Cons:
- The user has to view
a time-based
aggregated list. Multiple viewing
options are not provided. For
example, Alice
will not be able to
use this interface to view an
aggregated history based
on frequency.

Neutral:
- Since this task does
not involve irreversible
actions, safety is notthe main concern.

Pros:
- The aggregation is represented visibly
by showing how long the user has been
at a place.

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Task 6: Edit commercial contacts

 Storyboard

Learnability

Efficiency

Safety

Visibility

By selecting My LocaDeals from the home screen,
 Joe can see the deals he's currently participating in.
Clicking each one displays details regarding that Deal.
They can be deleted either from the details view or
from the list.

Pros:
- Interface provides
internal consistency with
the "Edit Social
Contacts" screen.

Cons:
- The "note" icon's
functionality as described
here  is
externally inconsistent with
what that icon means in
general.

Pros:
- The list interface
provides an
easy-to-view
option for the user.

- As before, providing multiple
options/paths to delete
the contact improves
efficiency by decreasing
the number of steps
required
(especially when Joe
is no longer
interested in a
business, for
example).

Cons:
- The user can
inadvertently delete
a commercial contact
(by a lapse).
The interface
should employ an
undo mechanism
to resolve this
problem.

Pros:
The information seen
by
Rei is
conveyed to the
user very clearly
and visibly.

Cons:
- The delete
mechanism is
not visible in the
design.