ONC Population Health Software Development and Branches High Level Summary Seong K. Mun, PhD Peter Li OSEHRA

Population Health Major Branches Frozen by ONC OSEHRA Transition Sep 2014 Version 3 May 2014 OSEHRA Trunk Version 2.1 Feb 2013 MITRE Trunk Nmedw branch Jul 2014 (Mark Yoon) MU-2 cert. ~ Dec 2013 May 2013 To be merged Northwestern Branch (nmedw) eHCT v2 branch Aug 2014 (Sabbir Siddiqui) Aug 2013 eHealthConnecticut Branch (V2)

Population Health Major Branches Frozen by ONC OSEHRA Transition Sep 2014 Version 2.1 Feb 2013 Version 3 May 2014 MITRE Trunk OSEHRA (Initial Fork) May 2013 Rebased Jan 2013 Nmedw branch Jul 2014 (Mark Yoon) Northwestern (2014 MU2 Certified) Aug 2013 eHCT v2 branch Aug 2014 (Sabbir Siddiqui) eHealthConnecticut (V2)

popHealth Software Versions Version 2 – eHealthConnecticut (eHCT) Use case for the States. Feature extensions including import data from multiple organizations, view aggregate measure calculations across multiple organizations, role-based access, etc. Active users include State of Connecticut and Illinois. Version 3 Frozen master branch transitioned to OSEHRA. Used by Northwestern University for MU-2 certification. Newer technology stack – Ruby/Rail Version 4 with build-in RESTful API Faster/smoother user interface based on Thorax Javascript framework 9/20/2018

Which version to use for the OSEHRA Master branch? Based on analysis of features, representatives from State of Connecticut and Illinois have agreed that V3 should be the OSEHRA Master branch. Currently awaiting for assessment from Northwestern University. 9/20/2018

9/20/2018