Linked Open Architectures for Open Government

Linked Open Architectures for Open Government

Integrated knowledge for and about the enterprise

Cory Casanave, PresidentModel Driven Solutions

Cory-c (at) ModelDriven (dot) comDC Semantic Web Meetup - July 2009

Copyright © 2009, Model Driven Solutions, Inc. / ModelDriven.org

Enabling Open Government

Government Domain Task Force

Open Government Workgroup

Gov.omg.org


Architectures as Data

Architectures are critical government data assets Business models, process models, service models, information models,

rules, metadata, ontologies, technology models, schema There is an enormous asset in this existing architectural data

Architectures describe government, how it works, its resources and services

Architectures make other data more valuable – describing data or how it was produced

The most valuable architectures are models with a formal meta model or schema

Currently – most models are not web data accessible, they are trapped in tools and files. Models are not linkable.

Viewed another way, architecture models are just data – data to be federated, analyzed, queried, linked and mashed up – data to be published as LOD


Architectures Models Are Trapped in Stovepipes

Information is unconnected, redundant and not usable outside its source

But, model files are not web assets and hard to connect

Architecture Models hold our enterprise Architectures, business processes and services, technology models,

SOA architectures, data schema and more


Architectures Published into the Data Cloud

Visible architectures have more value!


Goal: Linked Open Architectures

Federated Architectures Promotes Collaboration and Shared Resources

ServicesProcesses Data Policies


High level plan

1. Publish architecture models as LOD, in their original vocabulary

2. Develop well defined semantic hub models, vocabularies of “shared concepts”, and map the raw architecture data to these hubs

3. Develop various tools and techniques for querying, viewing, federating and analyzing the data for various stakeholders to enable visibility and collaboration

4. Provide for external comment and input for participation – federated architectures become read/write


Architecture Model Standards

Object Management Group (OMG) has adopted many of the architecture modeling standards XML Model Interchange (XMI) – Data Interchange for models (E.G.

Eclipse EMF) Unified Modeling Language (UML) Business Process Modeling Notation (BPMN) Service Oriented Modeling Language (SoaML) Etc…

There is an enormous asset in these modeling concepts All OMG and many other model tools interchange via XMI

Goal 1 – Publish any/all XMI based models as web Linked Open Data All UML, BPMN, SoaML models become linked open data assets


UML Model as Diagrams


UML Model as Data (In XMI)

<packagedElement xmi:type="uml:Class" xmi:id="_16_0_20ea04e0_1233085008046_755909_1129" name="Person"><ownedAttribute xmi:id="_16_0_20ea04e0_1233086797281_712895_1295" name="SSN" visibility="public"> <type xmi:type="uml:PrimitiveType" href="pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/> <upperValue xmi:type="uml:LiteralUnlimitedNatural" xmi:id="_16_0_20ea04e0_1233086815703_436260_1298" name="" value="1"/> <lowerValue xmi:type="uml:LiteralInteger" xmi:id="_16_0_20ea04e0_1233086815703_523919_1297" name=""/> </ownedAttribute> <ownedAttribute xmi:id="_16_0_20ea04e0_1233085716656_902161_1238" name="birth date" visibility="public" redefinedProperty="_16_0_20ea04e0_1233085218109_95685_1220"> <type xmi:type="uml:PrimitiveType" href="pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/> </ownedAttribute> </packagedElement>

XMI for Person (In terms of UML)


UML Model as Data (In RDF)

<packagedElement xmi:type="uml:Class" xmi:id="_16_0_20ea04e0_1233085008046_755909_1129" name="Person"><ownedAttribute xmi:id="_16_0_20ea04e0_1233086797281_712895_1295" name="SSN" visibility="public"> <type xmi:type="uml:PrimitiveType" href="pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/> <upperValue xmi:type="uml:LiteralUnlimitedNatural" xmi:id="_16_0_20ea04e0_1233086815703_436260_1298" name="" value="1"/> <lowerValue xmi:type="uml:LiteralInteger" xmi:id="_16_0_20ea04e0_1233086815703_523919_1297" name=""/> </ownedAttribute> <ownedAttribute xmi:id="_16_0_20ea04e0_1233085716656_902161_1238" name="birth date" visibility="public" redefinedProperty="_16_0_20ea04e0_1233085218109_95685_1220"> <type xmi:type="uml:PrimitiveType" href="pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/> </ownedAttribute> </packagedElement>

XMI for Person expressed in UML terms

<umlrdf:Package.packagedElement> <umlrdf:Class rdf:about="#_16_0_20ea04e0_1233085008046_755909_1129"> <rdfs:label>Person</rdfs:label>

<umlrdf:StructuredClassifier.ownedAttribute> <umlrdf:Property rdf:about="#_16_0_20ea04e0_1233086797281_712895_1295"> <rdfs:label>SSN</rdfs:label> <umlrdf:NamedElement.visibility>public</umlrdf:NamedElement.visibility> <umlrdf:TypedElement.type rdf:resource="pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/> <umlrdf:MultiplicityElement.upperValue> <umlrdf:LiteralUnlimitedNatural rdf:about="#_16_0_20ea04e0_1233086815703_436260_1298"> <rdfs:label/> <umlrdf:LiteralUnlimitedNatural.value>1</umlrdf:LiteralUnlimitedNatural.value> <umlrdf:Element.owner xmlns:ecorerdf="http://www.eclipse.org/emf/2002/Ecore#" rdf:resource="#_16_0_20ea04e0_1233086797281_712895_1295"/> </umlrdf:LiteralUnlimitedNatural> </umlrdf:MultiplicityElement.upperValue> <umlrdf:MultiplicityElement.lowerValue> <umlrdf:LiteralInteger rdf:about="#_16_0_20ea04e0_1233086815703_523919_1297"> <rdfs:label/> <umlrdf:Element.owner xmlns:ecorerdf="http://www.eclipse.org/emf/2002/Ecore#" rdf:resource="#_16_0_20ea04e0_1233086797281_712895_1295"/> </umlrdf:LiteralInteger> </umlrdf:MultiplicityElement.lowerValue> <umlrdf:Element.owner xmlns:ecorerdf="http://www.eclipse.org/emf/2002/Ecore#" rdf:resource="#_16_0_20ea04e0_1233085008046_755909_1129"/> </umlrdf:Property> </umlrdf:StructuredClassifier.ownedAttribute> <umlrdf:StructuredClassifier.ownedAttribute> <umlrdf:Property rdf:about="#_16_0_20ea04e0_1233085716656_902161_1238"> <rdfs:label>birth date</rdfs:label> <umlrdf:NamedElement.visibility>public</umlrdf:NamedElement.visibility> <umlrdf:Property.redefinedProperty rdf:resource="#_16_0_20ea04e0_1233085218109_95685_1220"/> <umlrdf:TypedElement.type rdf:resource="pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/> <umlrdf:Element.owner xmlns:ecorerdf="http://www.eclipse.org/emf/2002/Ecore#" rdf:resource="#_16_0_20ea04e0_1233085008046_755909_1129"/> </umlrdf:Property> </umlrdf:StructuredClassifier.ownedAttribute> <umlrdf:Element.owner xmlns:ecorerdf="http://www.eclipse.org/emf/2002/Ecore#" rdf:resource="#_16_0_20ea04e0_1233083439203_181145_396"/> </umlrdf:Class> </umlrdf:Package.packagedElement>

RDF-XML for Person expressed in UML terms


Structurally Mapping XMI and RDF

What is does There is a very direct structural mapping between the XMI and RDF

representation of a model This mapping is isomorphic (no information loss in either direction) Any XMI model (UML, BPMN, Etc) can be automatically and isomorphic

mapped to RDF as Open Linked Data Models become part of the open linked data cloud Everything is mapped, not a subset

What it doesn’t do The vocabulary and meta model of the source is retained, this publishes

the model data as LOD, it does not do a semantic mapping Semantic mapping is a separate step


RDF Repository (E.G. Anzo)

Publishing Architecture Models into the Data Cloud

XMI BasedModels

Enterprise Knowledge Base(EKB)

Check In

(Subversion)

SPARQLEndpoint

RDF-LODResource

Open GovernmentData Cloud

StakeholderViewpoint(E.G. DRM)

(UML, BPMN, Etc)


Enterprise Knowledge Base (EKB)

Based on work for the GSA Open Source eGov Reference Architecture (OSERA)

George Thomas & Rick Murphy Continuing work under ModelDriven.org

Being completed for open source release (August 2009) A public model server will also be deployed

Check in any model, published as LOD-RDF Underlying Technologies

Anzo RDF Repository Eclipse & Eclipse EMF OMG XMI & UML XSLT


Demo

Start with UML Model XMI Representation out of UML tool RDF-XML Representation after transform View in RDF Repository View as Data Reference Model (DRM)

More Details


OM

G S

tand

ard

XM

I R

epre

sent

atio

n

Mapping Meta Levels & Ontologies

UML Models(I.E. CRR)

The World (Business & Technical Systems)

UML “Meta Model”

MOF “Meta Meta Model”

Uses Vocabulary

Uses Vocabulary

Models

Link

ed O

pen

RD

F R

epre

sent

atio

n

UML RDF Models(I.E. CRR)

UML “RDF Schema”

MOF “Meta RDF Schema”

Uses Vocabulary

Uses Vocabulary

Models


Still to do for open source release

Resolve some issues with dereferenceable URLs and logical namespaces

Complete connection with Subversion General cleanup Deploy model server

Roadmap

Semantic Integration and Transformation


Enterprise Knowledge Integration

Data Cloud

ProcessModels

InformationModels

ServicesModels

RulesModels

GovernanceModels

FederatedEnterpriseViewpoints

Systems ArchitectsAnd Developers

Business AnalystsAnd Stakeholders

Software ArtifactsAnd Execution {BPM, SOA, Rules, DBMS…}


Federating Models & Data with Hub Ontologies & Mapping (Bridge Ontologies)

The World (Business & Technical Systems)

BPMN RDF Models

BPMN “RDF Schema”


Uses Vocabulary

Uses Vocabulary

Models

UMLRDF Models

UML “RDF Schema”


Uses Vocabulary

Uses Vocabulary

Models

Federated ModelsFederated Data

Shared ConceptHub Ontology

Shared ConceptMeta Ontology

Uses Vocabulary

Models

Uses Vocabulary


Integration Via Semantic Hubs

ConceptsWeSpecify

SemanticHub

ReferenceOntologies

SharedConcepts

MonetaryTrade

Part Of

IsMapped

Dis-IntegratedInformation

Buy

Purchase

WaysTo SpecifyThings

SharedCore

JointBehavior Part Of

De

scribe

s

De

scribe

s

UML

XML

De

scribe

s

Library of common conceptsCan grow over time

Mappingis not

“one-one”


EKB

OWL Concepts

XML Concepts

UML Concepts

Shared Concept Hubs Integrate Architectures

SharedConcept

SharedConcept

SharedConceptShared

ConceptSharedConcept

SharedConcept

SharedConcept

SharedConcept

SharedConceptShared

Concept

SharedConcept

SharedConceptShared

ConceptSharedConcept

SharedConceptShared

Concept

SharedConcept

•Library of Concepts

•Growing based on need

•Modular, not monolithic

•A construction set for languages

•A lattice of interoperable concepts


Enterprise Knowledge Base

Configuration MgmtEclipseTortoise

Web-UIUser Views

FormsBrowseQuery

File Get/Put

Eclipse IDE

Sub

vers

ion

Inte

rfac

e Artifact Repository

Orbeon XForms Server

Transformation Example (BPMN/UML)

Artifact / KB Integration

XM

L “R

est”

In

terf

ace

Knowledge Base

Sesame RDF KB

Inference & Rules

Transformation

Eclipse EMF Interface* Semantic Web Interface

BPMN

ProcessModel

BPMNModel

UMLModel

UML

Shared Concepts

Subversion


Tool & Standard Support Roadmap

XSD Specific Tools (E.G. System Architect)

Can currently support MagicDraw & SPARX DoDAF


Open Modeling Community•EKB•ModelPro•GAIN Initiative•fUML

Architecture Services•Service Oriented Architecture•Business Process Modeling•Semantic Web•Enterprise Architecture•Business Architecture•Systems Architecture•Model Driven Architecture

Thank You!

http://www.modeldriven.com

This Document: http://lib.modeldriven.org/MDLibrary/trunk/Pub/Presentations/OpenGovernmentArchitectures.ppt

Documents

Linked Open Architectures for Open Government