using provenance to support real-time collaborative design of workflows workflow evolution...
TRANSCRIPT
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Using Provenance to Support Real-Time Collaborative Design of Workflows
Workflow evolution provenance and OPM
Tommy Ellkvist and Juliana Freire
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Workflow Evolution
Version Tree
Workflows Data Products
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Action based representation of workflows
Nodes represents workflows Edges represents actions Actions are transformations on
workflows Actions are performed by users
1
2
0
Add Module(0)
Add Module(1)
3
Add Connection(0,1)
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OPM XML schema: Example of OPM
(The OPM, 2007)
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OPM XML schema: Translated OPM Example
<OPMGraph ...> <Artifact> <ArtifactId>1</ArtifactId> <Account>G</Account> <Account>O</Account> </Artifact> <Artifact> <ArtifactId>1</ArtifactId> <Account>G</Account> <Account>O</Account> </Artifact>… <Process> <ProcessId>1</ProcessId> <Account>G</Account> </Process> <Process> <ProcessId>2</ProcessId> <Account>O</Account> </Process> <Process> <ProcessId>3</ProcessId> <Account>O</Account> </Process>…
<Used ProcessId = "1" Role = "in" ArtifactId = "1"> <Account>G</Account> </Used> <Used ProcessId = "2" Role = "pair" ArtifactId = "1"> <Account>O</Account> </Used> <Used ProcessId = "3" Role = "in" ArtifactId = "3"> <Account>O</Account> </Used> <Used ProcessId = "4" Role = "in" ArtifactId = "4"> <Account>O</Account> </Used> <Used ProcessId = "5" Role = "left" ArtifactId = "5"> <Account>O</Account> </Used> <Used ProcessId = "5" Role = "right" ArtifactId = "6"> <Account>O</Account> </Used> <WasGeneratedBy ArtifactId = "2" Role = "out" ProcessId = "1"> <Account>G</Account> </WasGeneratedBy>… <Alternate Account1 = "O" Account2 = "G"/></OPMGraph>
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Vistrails XML Model
<vistrail dbHost="" dbName="" dbPort="" id="" name="" version="0.9.0" xmlns:xsi="http://www.w3.org/..."> <action date="2008-05-27 17:35:39" id="1" prevId="0" prune="" session="" user="g-tomel"> <add id="0" objectId="0" parentObjId="" parentObjType="" what="module"> <module cache="1" id="0" name="String" package="edu.utah.sci.vistrails.basic" tag="" version="" /> </add> <add id="1" objectId="0" parentObjId="0" parentObjType="module" what="location"> <location id="0" x="-89.0" y="62.0" /> </add> </action> <action date="2008-05-27 17:35:43" id="2" prevId="1" prune="" session="" user="g-tomel"> <add id="2" objectId="1" parentObjId="" parentObjType="" what="module"> <module cache="1" id="1" name="ConcatenateString" package="edu.utah.sci.vistrails.basic" tag="" version="" /> </add> <add id="3" objectId="1" parentObjId="1" parentObjType="module" what="location"> <location id="1" x="-20.0" y="-67.0" /> </add> </action> <action date="2008-05-27 17:35:46" id="3" prevId="2" prune="" session="" user="g-tomel"> <add id="4" objectId="0" parentObjId="" parentObjType="" what="connection"> <connection id="0" /> </add> <add id="5" objectId="1" parentObjId="0" parentObjType="connection" what="port"> <port id="1" moduleId="1" moduleName="ConcatenateString" name="str1" spec="(edu.utah.sci.vistrails.basic:String)" type="destination" /> </add> <add id="6" objectId="0" parentObjId="0" parentObjType="connection" what="port"> <port id="0" moduleId="0" moduleName="String" name="value" spec="(edu.utah.sci.vistrails.basic:String)" type="source" /> </add> </action></vistrail>
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Vistrails XML Model: Translated to OPM
<Used ProcessId = "1" Role = "in" ArtifactId = "0"stopTimeBegin = "2008-05-27 17:35:39" stopTimeEnd = "2008-05-27 17:35:39"> <Account>G</Account> </Used> <Used ProcessId = "2" Role = "in" ArtifactId = "1" stopTimeBegin = "2008-05-27 17:35:43" stopTimeEnd = "2008-05-27 17:35:43"> <Account>G</Account> </Used> <Used ProcessId = "3" Role = "in" ArtifactId = "2” stopTimeBegin = "2008-05-27 17:35:46" stopTimeEnd = "2008-05-27 17:35:46"> <Account>G</Account> </Used> <WasGeneratedBy ArtifactId = "1" Role = "out" ProcessId = "1” stopTimeBegin = "2008-05-27 17:35:39”
stopTimeEnd = "2008-05-27 17:35:39"> <Account>G</Account> </WasGeneratedBy> <WasGeneratedBy ArtifactId = "2" Role = "out" ProcessId = "2” stopTimeBegin = "2008-05-27 17:35:43" stopTimeEnd = "2008-05-27 17:35:43"> <Account>G</Account> </WasGeneratedBy> <WasGeneratedBy ArtifactId = "3" Role = "out" ProcessId = "3” stopTimeBegin = "2008-05-27 17:35:46" stopTimeEnd = "2008-05-27 17:35:46"> <Account>G</Account> </WasGeneratedBy> <WasControlledBy ProcessId = "1" AgentId = "concat.xml" startTimeBegin = "2008-05-27 17:35:39” startTimeEnd = "2008-05-27 17:35:39” stopTimeBegin = "2008-05-27 17:35:39” stopTimeEnd = "2008-05-27 17:35:39"> <Account>G</Account> </WasControlledBy> <WasControlledBy ProcessId = "1" AgentId = "concat.xml" startTimeBegin = "2008-05-27 17:35:43" startTimeEnd = "2008-05-27 17:35:43" stopTimeBegin = "2008-05-27 17:35:43" stopTimeEnd = "2008-05-27 17:35:43"> <Account>G</Account> </WasControlledBy> <WasControlledBy ProcessId = "1" AgentId = "concat.xml" startTimeBegin = "2008-05-27 17:35:46" startTimeEnd = "2008-05-27 17:35:46" stopTimeBegin = "2008-05-27 17:35:46" stopTimeEnd = "2008-05-27 17:35:46"> <Account>G</Account> </WasControlledBy>
<Agent> <AgentId>concat.xml</AgentId> <Agent>G</Agent> </Agent> <Artifact> <ArtifactId>0</ArtifactId> <Account>G</Account> </Artifact> <Artifact> <ArtifactId>1</ArtifactId> <Account>G</Account> </Artifact> <Artifact> <ArtifactId>2</ArtifactId> <Account>G</Account> </Artifact> <Artifact> <ArtifactId>3</ArtifactId> <Account>G</Account> </Artifact> <Process> <ProcessId>1</ProcessId> <Account>G</Account> </Process> <Process> <ProcessId>2</ProcessId> <Account>G</Account> </Process> <Process> <ProcessId>3</ProcessId> <Account>3</Account> </Process>
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Observations
General model – Only contains enough information to traverse the
provenance graph– No additional information stored
Different ways of representing workflow design provenance– Edges as actions– Edges as version differences
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Observations
What is the time?– How to interpret a time T of a process?– Does interpretation affect querying– Semantics of intervals
Who is the Agent?– Users– Workflow system– The session– Workflow specification
”OPM Level 2”?– Are ther workflow specifics we want to express
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Interoperability