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Process Modeling Tool (PMT) Very Short Overview

Oscar Slotosch, Validas AG. Process Modeling Tool (PMT) Very Short Overview. Validas AG About Us. We are a technology consultancy for quality assurance of embedded systems Our core competences are model- based development, model-based testing, test automation, tool qualification

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Process Modeling Tool (PMT) Very Short Overview

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  1. Oscar Slotosch, Validas AG Process Modeling Tool (PMT)Very Short Overview

  2. Validas AG About Us • We are a technology consultancy for quality assurance of embedded systems • Our core competences are model- based development, model-based testing, test automation, tool qualification • We develop innovative software engineering methods, implement them in form of tools and processes and we support our customers in their application.

  3. Portfolio and History Tool qualificationsince2006 Model-based Test since2001 Tool testsince2007 Qualification Kits fortools/librariessince2012/15 Tool Chain Analysis since2010 Validas AG

  4. Validas Topics Neuronal Nets

  5. Qualification Kit Qualification Processes Tool 5 • Standards (ISO 26262, IEC 61508, DO 178, EN 50128) require a safe usage of all SW development tools & libraries • Tool classification • Critical tools: Qualification • Safe Usage • We consider the following processes • Tool Chain Analysis • Qualification Kit Creation • Tool Qualification Tool Chain Analysis Tool 5 Application Developer with TCA Application Developer with QST ToolSafetyManual Library 1 Library 2 Library 2 Library 4 Library 5 Library 5 Library 5 Tool/ LibraryQualification Report Tool Qualification Templates Pot. Errors Tests Guidelines Tool / LibraryProvider with TCA Model Manual Qualification Kit

  6. Motivation: (QKit-)Compliances • Function-Specifications • Potential Errors • Known Bugs • Code-Coverage (ALL ASIL) • Architecture • Programming Guidelines • Tool Qualification Reports • Many Tests / TAU • … SWC Qualification Kit:(6-SEOOC Compliant) • Function-Specifications • Potential Errors • Known Bugs • Code-Coverage (ASIL D) • negative Tests / TAU • … SWC Qualification Kit:(8-12 Compliant) • Feature-Specifications • Potential Errors • Known Bugs • Mitigations • Requirements Tests / TAU • … Tool Qualification Kit:(8-11 Compliant) similar structures: development processes

  7. Goals of Process Modeling Tool Goals: Making Safety Easier & Safer • Formalize & improve processes • Show compliance with safety standards (Safety Plan) • Support achieving compliance (Safety Case) • Document processes Features: • Model processes (with BPMB like visualization) • Validate processes (syntactically) for consistency and completeness • Generate process & compliance reports • Generate Verification & Validation Plans (for separate VVT) • Can be used for modelling of model-based processes • Has been used to certify Validas qualification processes • Will be open source soon

  8. Process Modeling Tool PMT Model-Based Process Link Requirementsto Processes and Verification Actions Formalize Tailor Parameters QKit PMT ISO 26262, IEC 61508, .. Formalize ParameterValues Generate Generate Generate VVT ProcessDescription VerificationValidationPlan VerificationValidationReport Project: V&V Compliance Report Safety Case Safety Plan

  9. Graphical Notation Elements • Process Module: blue, rounded box: • Verification Module: green, rounded box: • Hierarchical Process Module: blue folders: • Hierarchical Verification Module: green folders: • Artifact: Grey box with note: • Model: Orange box with note: • StakeHolder: transparent box: • Conditions: yellow routes: Relations • Before After: solid arrow: • Read/Write: dashed arrow: • Artifact Containment: dotted arrow: Default • Start & End

  10. Process Example

  11. Example Compliane Argumentation • We use Test Generators that have to generate complete test case • We check this during V&V

  12. Verification and Validation Model • V&V Model documents Verification and Validation (for all instances of the parameters) • V&V Model is basis for Verification and Validation Tool (VVT) • VVT Model is generated from PMT (based on Process and Planning parameters) • Meta Model of VVT:

  13. Example: Corresponding Checklist

  14. Summary • Model-based process makes safety more safe • Safety plans & safety cases • PMT Prototype • Model processes with Parameters for Variants • Compliance Document Generators • VVT Prototype • Verification and Validation / check list generation is key for compliance • V&V report generation • Approach has been applied to certify Validas tool qualification process • Meta-Process can for semantic check of processes • Approach is currently used for all Validas qualification processes • QKits for tools • Classification & qualification of tool chains • QKits for libraries • QKits for software

  15. Model for Parameterized and Compliant Model-Based Processes Process Requirement References Claimes Compliance StakeHolder Artifact Input ProcessModule Output Parameter References Instances Before / After References Binding Model MetaModel Mandatory Mandatory Optional Includes VerifcationModule Optional MetaModelAtribute Optional MetaModelElement Mandatory MetaModelAssociation

  16. Future? PMT = Project Management Tool • Process Modules & Artifacts have the following project states: • DEFINED: Initial State • READY: Inputs are available (and pre-ceeding tasks are done) • IN_PROGRESS: work started • DONE: work finished • Workflow: • DEFINED (initial) • READY (automatically determined by PMT) • DONE (set from user)

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