8 February 2008 DVTk – IHE Actor Simulation Rick Busbridge Agfa Healthcare

8 February 2008

DVTk – IHE Actor Simulation

Rick BusbridgeAgfa Healthcare

2Rick Busbridge www.dvtk.org

DVTk IHE Actor Simulation• Requirements• Data Sources• Message Validation• Message Comparison• Configuration• Configuration UI• Applications• VB Scripting• Results

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Scheduled Workflow

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IHE Validation Framework

Pt. Registration [RAD-1] 12: Patient Update [RAD-12]

Pt. Registration [RAD-1] Patient Update [RAD-12]

Placer Order Management [RAD-2] Filler Order Management [RAD-3] Appointment Notification [RAD-48]

ADT

Query Images [RAD-14] Retrieve Images [RAD-16]

Image Display

Storage Commitment [RAD-10]

Modality Image Stored [RAD-8] Storage Commitment [RAD-10]

Creator Images Stored [RAD-18]

Procedure Scheduled [RAD-4] Image Availability Query [RAD-11] Procedure Updated [RAD-13] Performed Work Status Update [RAD-42] Performed Work Status Update [RAD-42] Instance Availability Notification [RAD-49]

Query Modality Worklist [RAD-5]

Evidence Creator

Performed Procedure

Step Manager

Modality PS in Progress [RAD-6] Modality PS Completed [RAD-7] Creator PS in Progress [RAD-20] Creator PS Completed [RAD-21]

Modality PS in Progress [RAD-6] Modality PS Completed [RAD-7] Creator PS in Progress [RAD-20] Creator PS Completed [RAD-21]

Modality PS in Progress [RAD-6] Modality PS Completed [RAD-7]

Creator PS in Progress [RAD-20] Creator PS Completed [RAD-21]

Order Placer

Acquisition Modality

Image Manager

Image Archive

DSS/ Order Filler

Example:Schedule Workflow

IHE Validation Framework is capable of emulating the actors and transactions defined in IHE.

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Requirements• Use DVTk to provide the “missing actors” in an IHE Integration

Profile.• Clear results reporting.• Ease of use.• Flexibility.• Re-use DVTk Validation Engine.• Support DICOM and HL7 – and later others.

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IHE Validation Framework

Emulate

Emulate

Emulate

Emulate

Emulate

Emulate

Emulate

System under Test

Example:Schedule Workflow

According the defined scenarios the DVTk IHE emulated actors will interface with the system(s) under test.

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AcquisitionModality

DssOrderFiller

PpsManager

ImageManager

ImageArchive

SUT - AcquisitionModality in Scheduled Workflow Integration Profile

Query Modality Worklist [RAD-5]

Modality PS In Progress [RAD-6]

Modality PS Completed [RAD-7]

Storage Commitment [RAD-10]

Modality Image Stored [RAD-8]

DVTK IHE Actors - simulators

Modality PS In Progress [RAD-6]

Modality PS Completed [RAD-7]

Modality PS In Progress [RAD-6]

Modality PS Completed [RAD-7]

Testing an AcquisitionModality using DVTk

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AdtPatientRegistration

OrderPlacer

PpsManager

AcquisitionModality

ImageManager

DssOrderFiller

SUT - DssOrderFiller in Scheduled Workflow Integration Profile

DVTK IHE Actors - simulators

Patient Registration [RAD-1]

Patient Update [RAD-12]

Placer Order Management [RAD-2]

Patient Registration [RAD-1]

Patient Update [RAD-12]

Filler Order Management [RAD-3]

Appointment Notification [RAD-48]

Modality PS In Progress [RAD-6]Modality PS Completed [RAD-7]

Modality PS In Progress [RAD-6]

Modality PS Completed [RAD-7]

Query Modality Worklist [RAD-5]

Storage Commitment [RAD-10]Procedure Scheduled [RAD-4]

Image Availability Query [RAD-11]

Procedure Updated [RAD-13]

Performed Work Status Update [RAD-42]

Instance Availability Notification [RAD-49]

Testing a DSS/OrderFiller using DVTk

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PrintComposerPpsManager

OrderPlacerImageManagerImageDisplayImageArchive

EvidenceCreatorDssOrderFillerAdtPatientRegistration

PrintServer

AcquisitionModality

Supported Actors

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Data SourcesDVTk IHE uses a number of data sources:• In-Built default values• User defined default values• DCM files (storage / worklist)

The DCM files are used by the Information Entity Assembly to provide Query/Retrieve and Modality Worklist Information Models which can be queried and retrieved.

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Message Validation• DICOM Messages are validated using the DVTk Validation Engine as with

earlier applications.• Uses of Definition Files.• Produces XML output.

• HL7 done via NIST Web Service – provide XML conformance profile and XML validation context – returns XML validation result stream.

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Data Directories• Various data directories can be defined where DCM files are read

/written.• Query/Retrieve, Archive and Storage Commitment servers can use

the same data directory to emulate an Archive.

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Message Comparison• Messages form Transactions in IHE.• Values in messages in different transactions are automatically

compared to each other.• Comparison can be filtered.

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Configuration• Configuration via XML file.• Only actors configured will be started (status ActorBeingEmulated).• Need to configure connections between peer actors.• Will automatically configure connections between two emulated

peers (coming soon).

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Configuration UI (under construction)

Configuration UI is under developmentTool box containing:• Default Actors• Default Devices• Custom Devices• Networks

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Actor configuration

DvtkIheActor

PeerActor1

PeerActor2

DvtkIheActor needsto be configured withpeer actor details

IHE Transactions

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XML Configuration File

<?xml version="1.0" encoding="us-ascii" standalone="yes"?><IheIntegrationProfile> <IntegrationProfileName>Scheduled Workflow</IntegrationProfileName> <RootedBaseDirectory>C:\Program Files\DVT20</RootedBaseDirectory> <ResultsDirectory>results</ResultsDirectory> <CredentialsFilename></CredentialsFilename> <CertificateFilename></CertificateFilename> <NistWebServiceUrl>http://127.0.0.1:8080/axis2/services</NistWebServiceUrl> <Hl7ProfileDirectory>hl7Profiles</Hl7ProfileDirectory> <Hl7ProfileStoreName>hl7ProfileStore.xml</Hl7ProfileStoreName> <Hl7ValidationContextFilename>hl7ValidationContext.xml</Hl7ValidationContextFilename> <Interactive>True</Interactive> <ActorConfiguration> <ActorName> <ActorType>DssOrderFiller</ActorType> <ActorId>OF_ID1</ActorId> </ActorName> <ConfigState>ActorBeingEmulated</ConfigState> - ActorIsSut or ActorDisabled </ActorConfiguration> <DicomPeerToPeerConfiguration>... </DicomPeerToPeerConfiguration><Hl7PeerToPeerConfiguration>... </Hl7PeerToPeerConfiguration></IheIntegrationProfile>

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DICOM Peer Actor Configuration Parameters

<DicomPeerToPeerConfiguration> <FromActor> <ActorName> <ActorType>AcquisitionModality</ActorType> <ActorId>AM_ID1</ActorId> </ActorName> <AeTitle>AM_AE</AeTitle> </FromActor> <ToActor> <ActorName> <ActorType>DssOrderFiller</ActorType> <ActorId>OF_ID1</ActorId> </ActorName> <AeTitle>DSS_AE</AeTitle> <IpAddress>localhost</IpAddress> </ToActor> <PortNumber>308</PortNumber> <SecureConnection>False</SecureConnection> <SourceDataDirectory>data\dssOrderFiller</SourceDataDirectory> <StoreDataDirectory>.</StoreDataDirectory> <StoreData>False</StoreData> <DefinitionFiles> <DefinitionFile>definitions\ModalityWorklist-FIND.def</DefinitionFile> </DefinitionFiles> </DicomPeerToPeerConfiguration>

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HL7 Peer Actor Configuration Parameters

<Hl7PeerToPeerConfiguration> <FromActor> <ActorName> <ActorType>AdtPatientRegistration</ActorType> <ActorId>ADT_ID1</ActorId> </ActorName> <AeTitle>ADT_AE</AeTitle> </FromActor> <ToActor> <ActorName> <ActorType>OrderPlacer</ActorType> <ActorId>OP_ID1</ActorId> </ActorName> <AeTitle>OP_AE</AeTitle> <IpAddress>localhost</IpAddress> </ToActor> <PortNumber>508</PortNumber> <SecureConnection>False</SecureConnection> <ActorOption1></ActorOption1> <ActorOption2></ActorOption2> <ActorOption3></ActorOption3> <SessionId>1</SessionId> </Hl7PeerToPeerConfiguration>

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ApplicationsDifferent kinds of applications can be built above the DVTk IHE Actors

assembly:• GUI / Command Line• Web Services• (NUnit) Automated Tests• VBScripts

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VB ScriptingVBScript can be used to write scripts to implement various test

scenarios.Script writer has to define:• Test SetUp – define message comparison filters and user defined

default values.• Test Execution – implement test scenario.

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Results• Both Detailed and Summary Results are produced.• A Detailed/Summary ResultsIndex file provide the links to the

underlying transaction results files.• The Message Comparison Results are shown in the ResultsIndex

file.

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Work still to be done…• Graphical application – further development

Hope that the configuration UI will become the runtime UI too.• Integration of other EVS Web Services.• Expand number of actors supported – into other Integration Profiles.

Explore the new dimension of Integration Testing

DVTk