There is a need to represent different types of data
owners and request subjects in the system as well
as external users and their rights when different
domains such as assisted living facilities, hospitals,
and pharmacies interact. One of the more difficult
privacy problems occurs when interacting systems
Ko et al.: Wireless Sensor Networks for Healthcare
Vol. 98, No. 11, November 2010 | Proceedings of the IEEE 1951
have their own privacy policies. Consequently,
inconsistencies in such policies may arise across
different systems. For this reason, online consistency
checking and notification along with resolution
schemes are required.
• There is a need to represent