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Though we had to do a relative re-ordering of our study participants, these users are representative of the user population categorization from GR1. User #2 never used any location-sharing apps previously and did not have a working knowledge of the capabilities of such mobile applications. Thus, that user is still a non-savvy user per the corresponding definition in GR1. We had to relax some of the constraints (usage of location-sharing apps) for the medium-savvy user because our User #3 had a mental model of how those apps worked but did not personally use them. User #1 can still be considered a very-savvy user because that user frequently used Google Latitude with family members and had previously used Facebook check-in (albeit rather infrequently).

Task

User Comments

Learnability

Efficiency

Safety

Create

 

 

 

 

Edit

 

 

 

 

Friends_LocaShare/
My_LocaShare

 

 

 

 

Overview

 

 

 

 

Briefing:

Panel

Thank you for participating in this user study. LocaShare is an application that allows you to share your location data in ways that are different from existing services like Foursquare and Latitude.
place and time-based sharing: you can elect to share your location only when you arrive in certain places, or only during certain times of day or times of the week, without the need to “check-in”
data browsing / transparency: An important part of the interface is the part that lets you see both data that is shared with you and see the data that you are sharing with others.

Setup: Imagine you are our TA (Katrina). There are three other users in the system – Scott, Tiffany and Sharon.

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