PPT Slide

Example: Mediation for Privacy

Public Health Application

• Needs valid statistical data

• No access to private data

Security Mediator

• Owned by hospital security officer

• Screens query and result

• Default is Manual operation

• Evolves by adding rules

Physicians’ Databases

• Valuable resources

• Need to be aggregated for significance

CDC

Security

Mediator

Private Patient Data

certified

query

source

query

certified

result

unfiltered

result

Gio Wiederhold TIHI Oct96 *

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