  Personal and home sensors generate valuable information that could be used in
Smart Cities. Unfortunately, typically, this data is locked out and used only
by application/system developer. While vendors are to blame, one should
consider also the "binary nature" of data access. Specifically, either owner
has full control over her data (e.g. in a "closed system"), or she completely
looses control, when the data is "opened". In this context, we propose, a
semantic technologies-based, authorization and privacy control framework that
enables user to maintain flexible, yet manageable data access control policies.
The proposed approach is described in detail, including implementation and
testing.
