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 Storyboard   |  Learnability   |  Efficiency   |  Safety   |  Visibility
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              |  Joe starts from the home screen and clicks    on the tab “Commercial Contacts”. He is   then taken to the screen shown here that can   be considered the “Home Screen” to handle   his commercial contacts. Here, he can view   various categories of products on a wheel. 
   Since Joe is at   a ski resort and wants to buy some gear,   he selects the wedge titled “Sporting Goods” and is taken to the next screen that shows   him the list of stores selling sporting goods   and having offers. 
   He can then click on the company providing the offers and see the details of the offers. To help Joe understand the exact information he would be sharing, LocaShare displays his   current information as an example. 
   Joe can choose to accept or delete the offer by pressing   the “Accept” or “Delete” buttons respectively.       Once he accepts an offer, he   would see a summary of the information he is about to share with Rei on the screen. He can choose to create a category in which to save Rei as a   contact. He finishes the process by pressing the “Save Contact” button or cancel   the offer by clicking “Cancel”. 
   |  Pros: 
   The numbers do not make sense as they are not labeled or defined on the screen. 
   Cons: 
 
 
   |  Pros: 
   Have to go through four screens to establish the commercial contact relationship. 
   Cons: 
 
 
   |  Pros: 
   If you over-share   information, the only way   to cancel that is by deleting   the contact relationship. Not very efficient in that respect. 
   Cons: 
 
 
   |  Pros: 
   Options and controls are clearly visible. 
   Cons: 
 
 
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Task 4: View aggregate |
 information of social contacts:
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 Storyboard   |  Learnability   |  Efficiency   |  Safety   |  Visibility
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                  |  Since Alice wants to view Joe’s aggregate information,   she first searches for Joe on her “Home Screen”   for social contacts. She then sees Joe’s profile as   seen in this sketch. At a glance, she can see that he   is near Sunday River and so she is relived that he   reached the resort safe and sound. When she clicks   on “View Aggregated Information”, she sees the   following screen. She can see a summary of Joe’s   location on a daily, weekly and monthly basis. Instead   of a map view that showed Bob’s locations using   markers, in this aggregated view, Alice can see a pie   chart/wheel showing the amount of time Joe spent at   various places.   Alice can choose to drill down and get additional   details by selecting a wedge from the wheel. Suppose    that she selected the category “Campground”   (shown as a shaded region), she can see a list of   places related to “Campground” that Joe has been   to and the amount of time he spent at each place. 
   |  Pros: 
   The user would use the first two   screens to view the current location   as well, so this task is easy to understand. 
   Cons: 
 
 
   |  Pros: 
   Have to go through three   screens to view the interested   data. May be helpful to have   hovering mechanisms. 
   Cons: 
 
 
   |  Pros: 
   No irreversible change   can be done in this viewing task. 
   Cons: 
 
 
   |  Pros: 
   Cons: 
   The graphs do not   really   convey interesting   information.   May be helpful to show   the information on the fourth   screen on hover (instead of   clicking and going  to   another screen). 
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 Task 5: Edit social contacts:   |   Storyboard   |  Learnability   |  Efficiency   |  Safety   |  Visibility
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        |  Since Joe wants to modify the location permissions   for Bob, he first searches for Bob on the “Home   Screen” for social contacts. After he comes to   Bob’s profile, he clicks on Bob’s icon/photo and   comes to this screen. Here he view the amount   and type of information that Bob can view about   <ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="a5f0ae91880618a9-fa02c730-464f437b-8b9fb074-e3ea63cfa10f241484f21aa1"><ac:plain-text-body><![CDATA[him. [Note: Suppose that during the trip Joe  ]]></ac:plain-text-body></ac:structured-macro>  allowed Bob to view his aggregated information.]   Joe can see that Bob can see his current location   as the lat/long in Cambridge, MA (his current   location). He also sees the pie chart/wheel that   describes the categorization of places that Bob   was able to view about him. He can now choose   to modify the permissions by clicking on the button   called “Modify Permissions” or can choose to   return by clicking “Cancel”. Once he clicks “Modify   Permissions”, he taken to the permissions sketch   described in task 1.   |  Pros: 
   Cons: 
   The task is not very easy to   learn in these two   slides, since the bulk of the editing   happens in the permissions screen. 
   |  Pros: 
   Cons: 
   May be helpful to have a   "Cancel   This Option" button beside the   specific/aggregate information   display. That way, the user   does not have to go to the permissions   screen to cancel   aggregation option (for example). 
   |  Pros: 
   Cons: 
   No irreversible action   possible in these two screens. 
   |  Pros: 
   Cons: 
   The data that the   social contact   (user's   friend, for example)   can see is very visible   and easy to understand. 
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