MDMI – Technical Overview
Slide 1
Copyright © 2012, FireStar Software, Inc. All rights reserved.
What is MDMI?
• MDMI is the OMG’s Model Driven Message Interoperability standard. It
is an approved OMG Standard.
• MDMI is a technical interoperability standard: MDMI is used to move
information in one file format into and out of any other file format that
uses the standard.
• MDMI does not replace any existing industry standards. It uses and
enhances existing standards in solving the problem of exchanging
electronic information.
• For healthcare, MDMI is an open source project in OHT and is a subproject within the OHT MDHT project. The OHT MDMI project contains
software (Editor (Design Time) and Runtime), input for the model (MDMI
Healthcare Referent Index), and use of the model (MDMI maps).
Slide 2
Copyright © 2012, FireStar Software, Inc. All rights reserved.
Requirements for MDMI Standard
•
•
•
•
Must incorporate and leverage existing and future industry standards
Re-engineering any legacy system is a non-starter.
Must deliver high quality
Must add business value:
 Lower the expertise and time to implement solutions.
 Quality of information exchange is higher.
 Dramatically lower the cost and time to solution for change.
Slide 3
Copyright © 2012, FireStar Software, Inc. All rights reserved.
MDMI – Technical Approach
• MDMI is a different approach for information exchange
between two parties. Instead of mapping A to B, MDMI
solves the problem with two independent maps.
Standard 1
MDMI Map
Hospital
1
MDMI Map
Standard 1
Data
Message
File
MDMI
Runtime
Standard N
Message
Data
File
MDMI Map
Clinic N
Slide 4
Copyright © 2012, FireStar Software, Inc. All rights reserved.
Standard N
MDMI Map
Components of MDMI
• The OMG MDMI Standard
 MDMI Model
 Referent Index
Slide 5
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MDMI Specification
The core
Semantic model
Node
+name : String
SemanticElement
+description : String [0..1]
+name : String
+minOccurs : int = 1
SemanticElement
MDMIBusinessElementReference
+description : String [0..1]
+name : String
+name : String
+maxOccurs
:
int
=
1
+elementType
:
MessageElementType
= NORMAL
1
+description : String [0..1]
+description : String [0..1]
+datatype
:
MDMIDatatype
+elementType : MessageElementType = NORMAL +location : String
+reference
:
URI
+businessElement
A SemanticElement
+datatype : MDMIDatatype
: String
+propertyQualifier
: +uniqueIdentifier
String
[0..*] [0..1]
1
: String
1+locationExpressionLanguage
+propertyQualifier : String [0..*]
+referenceDatatype
: MDMIDatatype
and =all
+multipleInstances : Boolean = false
+multipleInstances : Boolean
falseof its context
+fieldName
:
String
[0..1]
+ordering : String [0..1]
+ordering : String [0..1]
1
+oderingLanguage : String [0..1]
+/isSyntacticField
: Boolean =: String
false[0..1]
+oderingLanguage
+businessElement
+computedValue : MDMIExpression [0..1]
+computedInValue : MDMIExpression [0..1]
+computedOutValue : MDMIExpression [0..1]
0..*
+children
+parent
0..1
+fromMdmi
1..*
+computedValue : MDMIExpression [0..1]
+computedInValue : MDMIExpression [0..1]
+toMdmi
+computedOutValue
: MDMIExpression [0..1]
+parent
LeafSyntaxTranslator
+format : String
+formatExpressionLanguage : String [0..1]
0..1
Core of the Syntax
Model
0..*
1..*
1..*
+context
ToBusinessElement
1
ToSemanticElement
+children
+description : String [0..1]
+relatedSemanticElement
1..*
+description [0..1]
1
Mapping to the
Referent Index
ConversionRule
+relationships
+name : String
0..*
+description
: String [0..1]
+rule : String [0..1]
SemanticElementRelationship
+ruleExpressionLanguage : String [0..1]
+name : String
+description : String [0..1]
1
+rule : String
+ruleExpressionLanguage : String [0..1]
+minOccurs : int = 1
+maxOccurs : int = 1
+sourceIsInstance : boolean = true
+targetIsInstance : boolean = true
Slide 6
Copyright © 2012, FireStar Software, Inc. All rights reserved.
MDMI Referent Index
MDMI Referent Index
is
Equivalent
to
Webster’s Dictionary
Similarities
• Business Element is equivalent to a word
• The meaning of a Business Element doesn’t change
• Business Elements are not deleted
• Adding a new Business Element is not difficult and doesn’t impact other words.
• Business Elements have synonyms.
Differences
• A Business Element has one meaning, and only one meaning
• There is only one Business Element for a term (semantic clarity).
• There are near-synonyms.
Slide 7
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MDMI Healthcare Referent Index
• Leverages and can reference existing standards
Business Element Entry
Element Name:
Description:
Unique ID:
Reference datatype:
Near-Synonyms:
Required Information:
Business Elements
Reference model is HITSP C154
Data Types
Simple data types are defined in
the Standard and are based on ISO
standards.
Complex data types are allowed
and the reference models are
ANSI/HL7 V3 R1 Data Types and
MDHT with CDA.
Synonyms:
Pointers to existing dictionary entries
.
.
Pointers to existing model attributes
.
Pointers to existing message schema
.
Meta Data about Business Element:
Synonyms, References to Healthcare
Information Models, examples, and
others
.
.
Slide 8
Copyright © 2012, FireStar Software, Inc. All rights reserved.
DEMONSTRATION
Slide 9
Copyright © 2012, FireStar Software, Inc. All rights reserved.