Heath Information Technology Commission Report - Fy2010 Appropriation Bill - Michigan Department Of Community Health Page 35

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for performance, security and reliability. We expect that a significant amount of the patient data
that needs to be exchanged will be within sub-state HIEs where the patient receives care. Just
as networks use bridges, switches or routers to segment traffic we will expect that HIEs will
segment traffic that can stay within the HIE and only route transactions to the MiHIN Shared
Services Bus that must cross HIEs.
The MiHIN Shared Services Bus architecture is designed to accommodate a vast majority of the
administrative and clinical use cases that support broad Health Information Exchange by
implementing four core services. Those services are:
Developing a Security Framework -Allows for the authentication of systems (nodes)
and users and manages patient consent. Also implements appropriate security policies
for role-based access and auditing.
Messaging - The ability to “push” messages from one node to another and
accommodate data translations required for each site.
Subject Discovery- The ability to perform deterministic and probabilistic searches for
patients across HIEs.
Query for Documents - The ability to look up structured and unstructured data in the
form of documents stored somewhere in the MiHIN network of data repositories.
Any use case which is predicated on connecting to a secure network and either pushing data or
performing inquiries can be met with these core services. Of all the ONC priorities mentioned
above the only one that could not be accomplished with these base services alone is
ePrescribing which requires a fairly complex prescription ordering system.
MiHIN Strategic Plan
Page 29

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