in the development, design, and maintenance of e-governance systems. (6) Open source Systems developed by the Institute should, to the extent practicable, be open source. Systems developed by Americas partner countries are encouraged to be open source as well. (7) Adaptation The framework shall account, consistent with other provisions of this Act, for existing e-governance systems developed by Americas partner countries, including by adopting, in part or in whole, existing e-governance systems as part of the framework or as reference implementations within the framework. (d) Privacy The e-governance framework developed under subsection (a) shall incorporate privacy best-practices, including as follows: (1) Data minimization Systems developed under the framework should collect only the minimal set of data necessary for a given purpose and without any additional processing unnecessary for fulfilling that purpose. (2) Data protection The Institute shall define necessary access controls for data and require encryption of data where appropriate. (3) Data retention The Institute shall develop and publish a data retention policy, which shall— (A) be honored by any system operating under the framework