interoperability and message brokers
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7/29/2019 Interoperability and message brokers
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Stelios Halkiotis
19/04/2010
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Hospital Information Systems and
diversity The structure of Healthcare provider organizations
and the way they are financed have led to a highdegree of autonomy of departments with respect totheir choice of IT applications. Departments tend tochoose the application that suits their particularrequirements.
While these applications in their standalone capacity support the activities of the departmental processes,the integration of these applications has a clear added value for the organization as a whole.
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Systems and Components
Pharmacy Inpatient
Administrati0nSystems
Outpatient Administration
System
Patient Tracking andIdentification
Systems
Supplies Nursing Informationsystems
Emergency Department
Information SystemLaboratory Information System
HR SystemMedical Records
/ClinicalInformation systems
Radiology Information System
Intensive careinformation system
Inventories Patient Billing P.A.C.S.Surgical Information
System
Payroll System Claims management Accounting systemsReporting and B.I.
Systems
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Interoperability…..The ability of two or more systems or components toexchange information and to use the information thathas been exchanged
or
a property referring to the ability of diverse systems ororganizations to work together
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Interoperability…..
A message is a collection of data that encapsulates
information about an event in the healthcareenterprise. (HL7 messages, xml, flat files, etc)
The data connection between two computer systems iscalled an interface. (Tcp/ip clients and servers, http
clients and servers, database tables, ftp clients, file folders etc.)
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Interoperability….. The traditional way of integration is based on point-to-
point connections. The healthcare provider has very littlecontrol over the creation, maintenance and upgrading of this type of proprietary solution, and the dependency onthe vendors involved, is relatively high. A change of one of the systems involved causes the whole point-to-pointconnection development cycle to start all over again.
Each, connection potentially has its own transportmechanism and message format, and in many cases is
poorly documented, hard to integrate and hard tomaintain. Some systems may be new, some may be legacy,some speak XML, some fixed-position text and some of them may not support messaging functionalities.
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Systems and Components
Pharmacy Inpatient
Administrati0nSystems
Outpatient Administration
System
Patient Tracking andIdentification
Systems
Supplies Nursing Informationsystems
Emergency Department
Information SystemLaboratory Information System
HR SystemMedical Records
/ClinicalInformation systems
Radiology Information System
Intensive careinformation system
Inventories Patient Billing P.A.C.S.Surgical Information
System
Payroll System Claims management Accounting systemsReporting and B.I.
Systems
If there are N applications, and every application links to everyother application, the total number of point-to-point connections required is N * (N - 1)/2.
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The Message Broker Concept A Message Broker is a centralized hub that simplifies
communication among heterogeneous systems.
Takes care of all connections between the applicationsin an organization. One connection is created betweeneach system and the Message Broker and messages are
transported via this bi-directional connection.
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The Message Broker Concept
Pharmacy
Inpatient Administrati0n Systems
Outpatient Administration System
Payroll System
Supplies
Nursing Informationsystems
Emergency DepartmentInformation System
Laboratory InformationSystem
HR System
Medical Records/Clinical Information
systems
Radiology InformationSystem
Intensive careinformation system
Inventories
Patient Billing
P.A.C.S.
Surgical InformationSystem
Payroll System
Claims management
Accounting systems
Reporting and B.I.Systems
Message Broker
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The Message Broker ConceptMain functionalities:
Message translation(message mapping )
Message routing Message transformation
Message archiving
Advantages :
better cost/benefit ratio than point-to-pointconnections
the cost of creating new connections is significantly
lower
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Benefits Interoperability helps patients get the most out of
technology
When different products can be combined without
complicated and expensive interfaces, smallcompanies can enter a field and make specializedproducts.
Without interoperability, hospitals are forced to turn
to large vendors that provide suites of compatibleapplications. As a result, Interoperability promotescompetition, and competition encourages innovationand quality.
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Thank you.