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Federated data system allow health departments and other health organizations to share and analyze health data with secure authentication and access control. A priority for this architecture is to enable local administration and control of patient and summary level health information. Two benefits, among many, to the public health community are lower costs through reuse of public health focused applications and services, such as the Geocoded Interoperable Population Summary Exchange (GIPSE) and the ability to keep local public health data local while allowing varying degrees of access. The operative principles in federated systems are long-term sustainability, low barrier to entry, standards-based, reusability of assets, collaboration, open source, best practices, non-centralization, and community-driven. One important technical feature of federated models is that they support remote query as well as file transfer functionality where previous models only supported file transfer, providing flexibility for health agencies to manage particular IT and non-IT data sharing issues.

[jfs1]Should we strike this? Again, I think ‘query’ is important somewhere, but I may be wrong.

[Ken]We should keep last paragraph