SA-NT DataLink
Supporting health, social and economic research, education and policy in South Australia and the Northern Territory.

Privacy Protecting Model

SA NT DataLink provides a linkage service to enable research and policy analysis of de-identified data from multiple databases. Instead of researchers having access to individual's personal details, the model used by SA NT DataLink increases privacy protection and confidentiality of researchable data.

The Separation Principle

SA NT DataLink uses the Separation Principle that was pioneered in the 1980s by Michael Hobbs - please refer to the diagram below.

This principle restricts the use of identified data for the creating of privacy protecting project specific linkage keys that enables each of the Data Custodians to release anonymised data to the Researcher. As a result, only the Data Custodian has access to both the Personal Identifiers and the Content Data, SA NT DataLink only has access to the Personal Identifiers with the the Researcher using the de-identified data for their research study.




The Separation Principle is described in the Australian and New Zealand Journal for Public Health, 2002



SA NT DataLink's privacy protection protocols and processes have been developed in cooperation with the Privacy Committee of South Australia  and the Northern Territory Information (Privacy) Commissioner.