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Interoperability 101
Bridget A. Moorman, CCETechnical Manager
Industry Advisory BoardRenewing Health
The Continua Alliance
Overview
• What is Interoperability• Why be Interoperable• Interoperable Healthcare• Interoperability for Procurers• Standards at Interfaces• Example Environments• OSI 7 Layer Example• PAN, LAN, WAN, HRN Interfaces• Procurement Language• Market of Interoperable Products• Summary
What is Interoperability?
• Interoperability - the ability of a system or a product to work with other systems or products without special effort on the part of the customer
• Two approaches:– By adhering to published interface standards – By making use of a "broker" of services that can
convert one product's interface into another product's interface "on the fly"
www.continuaaliance.org
Why be interoperable?*
• Empower individuals and patients to better manage their health by providing them with information regarding their fitness and health through personal medical devices and services.
• Allow loved ones and professional care givers to more accurately monitor and coach chronic disease patients and elderly individuals living independently.
• Enable medical and fitness device manufacturers to rapidly develop interoperable devices and services using industry developed connectivity standards.
• Enable health care providers to offer better quality care through personalized health solutions assembled from a rich marketplace of interoperable health care devices and services.
* Per Continua Health Alliance
Interoperable Healthcare*
• ….transmit their vital signs - blood pressure, heart rate, oxygen saturation, glucose levels, temperature, weight, respiration - seamlessly from home to their health professional, and get real-time feedback on their condition
• ….personal health and medical devices must be fully interoperable with each other and with other information sources; because broad interoperability has yet to be achieved, it is an emerging priority for health systems and for the medical and information technology industries
* Per Continua Health Alliance
Interoperability for Procurers
• Meet the needs of your customers– Patients– Clinicians– Administration– Insurance companies– Government
• Allow for ‘best of breed’ acquisition• Drive market development towards standards based
interoperability– Goal to drive down long-term costs– Lessen infrastructure replacement costs– Can allow heterogeneous environment to inter-communicate
Standards at Interfaces
• By adhering to published interface standards – Interfaces
• Personal or Peripheral Area Network (PAN)• Local Area Network (LAN)• Wide Area Network (WAN)• Health Record Network (HRN)
– Interface functions can ‘collapse’ onto each other depending on environment
Standards Promulgation Organizations
• The Continua Alliance– Focuses on personal health and wellness market
• Use of IEEE 11073 PHD standards; IHE-PCD-01 for WAN
• Integrating the Healthcare Environment– Patient Care Devices Domain (IHE-PCD)
• Use of IEEE 11073 standards; several profiles defined in healthcare environment using medical devices
WAN-IF
Example I of EnvironmentThe Continua Alliance
ApplicationHosting Device
PANDevice
PAN-IF
LANDevice
LAN-IF
xHRN-IF
WANDevice
HRDevice
*
0..1
*
*
*
*
*
*
to service provider
to hospital (clinical domain)
PANDevice
ApplicationHosting Device
PANDevice
Example II of EnvironmentIHE-PCD
PAN, LAN and WAN interfaces are collapsed into this construct(Integrating the Healthcare Enterprise-Patient Care Devices Domain (IHE-PCD))
Example III of EnvironmentThe Continua Alliance
Standards areShown at each Interface in thisdiagram
Basic Layers in InterfacesOSI 7 Layer Network Model
PAN-LAN Interface Standards - ContinuaApplication
Hosting Device
PANDevice
PAN-IF
LANDevice
LAN-IF
*
0..1
*
*
PANDevice
ApplicationHosting Device
PANDevice
WAN Interface Standards – Continua and IHE-PCD
WAN-IF
ApplicationHosting Device
WANDevice
*
*
to service provider
ApplicationHosting Device
HRN Interface Standards – Continua and IHE
xHRN-IF
WANDevice
HRDevice
*
*
to hospital (clinical domain)
Procurement Language• “The following interoperability standards are
recommended and preferred …..”• List by functional interface and OSI layer
interface:– Example: “Personal Area/Local Area Network;
Physical, Data, Network, Transport layers”
• Certification and/or assurance of interoperability in heterogeneous environment (Continua Certification, IHE Conformance Statement)
Market of Interoperable Products
• If market is sparse, still need to include interoperability language to send a message to market– Can become a discriminator in final field of
products– Sets tone-communicates your organization’s vision
for desire of interoperability
• Can be used in marketing materials to your customers – “We are interoperable based on standards”
Summary
• Interoperability - the ability of a system or a product to work with other systems or products without special effort on the part of the customer
• Use of “standards based approach”• Need to include interoperability language to
send a message to market– List standards desired in products by functional
and network layer interfaces
