Meta Model Application For Consistency Management Of Models For Avionic .
Meta model application forconsistency management ofmodels for avionic systems designJ. Stegen, S. Dutre, J. Guo, M. Zeller, S. RothbauerVoSe 2019 15/09/2019 Siemens AG 2019Realize innovation.
Siemens Industry SoftwareTool portfolioPERFORMANCEANALYTICSMECHANICAL DESIGNNXSolid ppsMFG EXECUTIONELECTRONICS DESIGNSIMATIC ITIBS QMSWinCCCamstarMentor UTOMATIONSOFTWARE DESIGNPolarion ALMPolarion QAPolarion RequirementsSIMATICSINUMERIKPREDICTIVE ANALYTICSNX NastranImagine.LabVirtual.LabTest.LabPage EERINGSimcenterStar-CCM HEEDSUnrestricted Siemens IntositeNX CAMLine DesignerMindSpherePolarionTeamcenterSiemens Digital Industries Software
The Aviation Industry is Quickly EvolvingStricter RegulationsIncreased CompetitionFrom mechanical to cyber-physicalNew Aircraft and Propulsion ConceptsUnrestricted Siemens 2019Page 32019.MM.DDSiemens Digital Industries Software
Systems ThinkingTypical Current ProcessesSafety AssessmentFunctional Definitions & DiagramsLogical ArchitecturesRequirements Documents Systems Engineering processes are inplace in many areas, but they are typicallynot systematically integrated Physical DesignsIntegration testingUnrestricted Siemens 2019Page 42019.MM.DDUnit testingVirtual Verifications and validationSiemens Digital Industries Software
Interdependence of modelling artefactsaerospace exampleCurrently: Polarion, IBMDoors, Currently: Capella, Cameo, Highly interrelated but often in siloed toolsCurrently: Excel, Word, inhouse tools, Unrestricted Siemens 2019Page 52019.MM.DDSiemens Digital Industries Software
What is Polarion Application Lifecycle Management (ALM) tool with requirements, test cases, live documents, Browser-basedOn top of SVN repositoryUses the concept of workitems for its instances of dataHighly customizableUnrestricted Siemens 2019Page 62019.MM.DDSiemens Digital Industries Software
Polarion: from ALM to integrated data management Polarion has been customized to contain next to requirements also system modelling and safetymodelling artefacts: System: Physical components and physical links between them Safety: FMEA: Failure Mode, Failure Effect, Detection Method FHA : Function, Failure Condition, Effect, Measure Data that is often contained in siloed tools (such as word, excel, Cameo, ) is created here andmaintained in central toolUnrestricted Siemens 2019Page 72019.MM.DDSiemens Digital Industries Software
Polarion: from ALM to integrated data management Polarion setup is basically a meta model on data types and relationships between themUnrestricted Siemens 2019Page 82019.MM.DDSiemens Digital Industries Software
Underlying Meta model Data in Polarion fits to certain setup which is similar as a meta model All workitem types in Polarion are basically classes in meta modelVelocityUnrestricted Siemens 2019Page 92019.MM.DDSiemens Digital Industries Software
SUM instantiation from Meta ModelUnrestricted Siemens 2019Page 102019.MM.DDSiemens Digital Industries Software
Polarion visualizations on top of SUMUnrestricted Siemens 2019Page 112019.MM.DDSiemens Digital Industries Software
Sirius Eclipse-based tool, made by Obeo, which allowsto create graphical modeling workbenches (eg.Capella) Based on Eclipse Modelling Framework (EMF)and Graphical Modelling Framework (GMF) Different Custom diagrams have been created forSafety Assurance (FHA, FMEA, GSN), Physicalarchitecture and Functional breakdown Polarion integration has been developed forbidirectional interactionUnrestricted Siemens 2019Page 122019.MM.DDSiemens Digital Industries Software
Sirius-Capella relationshipTool for creation of graphical workbenchesGraphical workbenchCustomized graphicalworkbench that can interactwith PolarionUnrestricted Siemens 2019Page 132019.MM.DDSiemens Digital Industries Software
Sirius as graphical interface for PolarionVideo: System ModelVideo: FMEAUnrestricted Siemens 2019Page 142019.MM.DDSiemens Digital Industries Software
Sirius – Polarion interactionOdesignfileVelocityJava ExtensionManual RecreationUnrestricted Siemens 2019Page 152019.MM.DDSiemens Digital Industries Software
Connection between Polarion and Sirius Sirius supports Java extension points that are triggered whenactions are performed on the Sirius diagrams Polarion Web-services (SOAP) are used to retrieve, create andmodify data on the Polarion repositoryJava Web-Services Disadvantages: Maintainability, mapping between Polarion workitems andSirius elements are hardcoded, changes in meta model leadto modification in codeGet Data and instantiate in SiriusSUM (odesign automaticallyrenders from SUM).Set newly created itemsand modificationsJava extensions Solutions/Improvements: Data mapping in separate document Automatic mapping based on Class name, . Use of standards such as OSLCUnrestricted Siemens 2019Page 162019.MM.DDSiemens Digital Industries Software
Maintainability issueModify graphicalmappingOdesignfileVelocityJava ExtensionModify instancemappingNew Workitem:“logical component”Manual RecreationModify metamodelUnrestricted Siemens 2019Page 172019.MM.DDSiemens Digital Industries Software
Distributed development All data is maintained in Polarion: central source of truth Changes in Sirius are immediately pushed to PolarionProblem: Multiple people working concurrent on same data, how to maintain both? Both versions are stored under SVN repo. Older commits can beretrieved if needed (not ideal)Solution: Locking mechanism Lock resources that are being modified Supported by Obeo Designer team (not within current setup)Unrestricted Siemens 2019Page 182019.MM.DDSiemens Digital Industries Software
Conclusions The proposed methodology shows the applicability of anunderlying meta model to an avionic system case study By moving from a document-centric to an integratedmodel-based approach, different interrelated dataartefacts can be integrated A plugin has been developed to interface data from acentral Polarion repository with Sirius, a graphicalworkbench development tool.Unrestricted Siemens 2019Page 192019.MM.DDSiemens Digital Industries Software
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Page 5 2019.MM.DD Siemens Digital Industries Software Currently: Polarion, IBM Doors, Currently: Capella, Cameo, Currently: Excel, Word, in-Highly interrelated but often in siloed tools house tools, Interdependence of modelling artefacts aerospace example
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Meta-analysis using Stata Prepare data for meta-analysis Declaring a meta-analysis model Declaring a meta-analysis model In addition to effect sizes and their standard errors, one of the main components of your MA declaration is that of an MA model. metaoffers three models: random-effects (random), the
