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Access Control » History » Version 9

Suravi Regmi, 11/25/2025 06:16 PM

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# Access Control + Policy Structure
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## Access Control
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![](ck-flow.png)
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## Policy
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Goal: limit data access to only authorized users based on terms of use and privacy risks
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Default access: Data owner
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WHO : the requester is (e.g. Adam)
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WHAT: data is requested (e.g. ecg, glucometer)
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WHERE : the data was recorded (e.g. gym)
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WHEN: the data was generated (e.g. after  04/04/2023)
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![](policy-format.png)
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Time-Based Enhancement Enables policies like " **Adam may access data generated from November 1, 2024 to April 1, 2025** ”. Dates need to be converted to unix timestamp before usage with the system.
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