Heath Information Technology Commission Report - Fy2010 Appropriation Bill - Michigan Department Of Community Health Page 34
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874.3.2 Technical Infrastructure Strategy
This section describes the strategic approach to the technical architecture design for the MiHIN
Shared Services based on the priorities identified in the ONC Guidance for Meaningful Use and
guidance from the State of Michigan. The MiHIN Shared Services is an infrastructure design
that enables widespread interoperability among disparate systems. This design is both vendor
agnostic and technology agnostic, and focuses on technical standards, protocols, and
architectural patterns. The architectural design framework will guide detailed requirements
definition, vendor selection and the implementation of the MiHIN shared services.
The intent of this technology infrastructure design is to look long-term at networking
infrastructure and business models that support many different needs for information exchange
and act short-term beginning with a few kinds of information exchange that encourage provider
and organizational participation and generate cost savings that lead stakeholders to accept
long-term financial participation in the networks.
The architectural details specified here are intended to accommodate implementation of the
shared services bus while providing a framework that sets boundaries on the dimensions of
technical implementation to ensure interoperability and consistent operation. Relevant
interactions between the shared services bus and sub-state HIEs are described in this section.
Since standards are critical for long-term viability of the MiHIN the architecture has an
overarching goal to be compliant with the national standards for healthcare interoperability
recognized by the Secretary of the Department of Health & Human Services (HHS). Specifically,
HHS recognizes interoperability specifications containing harmonized standards published by
the Healthcare Information Technology Standards Panel (HITSP), and as such, the MiHIN is
being designed as a HITSP-compliant and HITSP-consistent (where no direct conformance
criteria exist) architecture. The approach to accomplish that goal will be described in this
section.
As national standards for interoperability and data exchange are developed and adopted, MiHIN
will advocate, promote, align with state standards and foster adoption of national standards by
all Michigan HIEs. The use of such standards will provide organizations with the interoperability
necessary to electronically move clinical information between disparate provider organizations.
4.3.3 Proposed Conceptual Architecture
The MiHIN Shared Services will be implemented using a service-oriented architectural paradigm
(SOA), implemented through web services operating through an enterprise service bus (ESB),
with a four-tier protocol stack. The Conceptual Architecture of the MiHIN Shared Services is
depicted in the figure on page 30.
4.3.3.1 C
D
C
ORE
ESIGN
ONCEPTS
The design of the MiHIN Shared Services Bus is predicated on there being relatively few direct
connections (<50). The idea is based on the common network design principle of segmentation
MiHIN Strategic Plan
Page 28
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