Re: ACTION [CONTINUES] Use Cases on Privacy and Context

On 20 May 2009, at 08:28, Oshani Seneviratne wrote:

> 1. Intransitivity of Rules/Policies Applied to Social Network Data


Oshani - in this above example, Alice has given permission to Bob for  
her photos to be "viewed and used by her friends". Assuming that  
"used" is a "reproduce permission", then Bob can take these photos and  
re-publish them publicly. (ie no violation on Alice's policy)

If, however, Alice only really meant "viewed", then there is a  
violation. And in this case, Bob's Social Network should not allow him  
to make Alice's photos public (if it conformed to the policies/rules)


Cheers...  Renato Iannella
NICTA