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xOWL – an Executable Modeling Language for Domain Experts. Laurent WOUTERS (EADS Innovation Works, France) Marie-Pierre GERVAIS ( Université Paris Ouest , LIP6, France). Motivation: Example. Operating a safety-critical system. Stress, fatigue, …. Procedure. Operator. System. - PowerPoint PPT Presentation
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xOWL – an Executable Modeling Language for Domain Experts
Laurent WOUTERS (EADS Innovation Works, France)Marie-Pierre GERVAIS (Université Paris Ouest, LIP6, France)
xOWL – an Executable Modeling Language for Domain Experts
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Motivation: ExampleOperating a safety-critical system
EDOC 2011
Procedure
Stress, fatigue, …
System
Operator
Activate fuel jettison
Check gears are up
Flaps to MAX
Pitch and roll to 0
Aircraft ditching procedure:
xOWL – an Executable Modeling Language for Domain Experts
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Motivation: Holistic Model-Based Approach to Testing
EDOC 2011
Procedure
Stress, fatigue, …
System
Operator
Execute
Resultsscenario
modifications
Model
xOWL – an Executable Modeling Language for Domain Experts
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Motivation: Multiple Domain Experts
EDOC 2011
Procedure
Stress, fatigue, …
System
Operator
System EngineersInteraction ExpertsCognitive Psychologists
Model
xOWL – an Executable Modeling Language for Domain Experts
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Motivation: Collaborative Modeling
EDOC 2011
Multiple domain-specific perspectives on the same model
CAD[1] Tool for Domain ABuild ModelsTest/ExecuteReasoning
Expert in Domain A
Domain-Specific Concrete Syntax
[1] Computer Assisted Design
CAD[1] Tool for Domain BBuild ModelsTest/ExecuteReasoning
Domain-Specific Concrete Syntax
Expert in Domain B
xOWL – an Executable Modeling Language for Domain Experts
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Knowledge Manipulation in Human Sciences
Domain rules:E.g.: “The short-term memory of a human is cut by half under stress”.
EDOC 2011
Inference rule Reasoning
Complex domains and classification chains:
[1] Kühne. (Mannheim University) Matters of (Meta-) Modeling (Soft. & Sys. Mod.)[2] Atkinson, Kühne. (Mannheim University) The essence of Multilevel Metamodeling (UML ‘01)
Short-Term Memory
Memory Kind
Bill’s STM
Multi-Level Modeling [1, 2]
classified by
classified by
xOWL – an Executable Modeling Language for Domain Experts
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State of the Art
EDOC 2011
[1] Muller et al. (Triskell) Weaving Executability into Object-Oriented Meta-Languages (MoDELS 05)[2] W3C. http://www.w3.org/TR/owl2-overview/[3] W3C. http://www.w3.org/Submission/SWRL/[4] G. Noyrit, S. Gérard, F. Terrier, and B. Selic. Consistent Modeling using Multiple UML Profiles. In MoDELS, volume 6394 of LNCS. Springer-Verlag, 2010.
Multi-Level Modeling
Behavior Modeling
Rules & Inferences
ExecutabilityK
erm
eta
[1]
OW
L +
SW
RL
[2, 3
]
fUM
L [4
]
xOWL – an Executable Modeling Language for Domain Experts
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xOWL: Extending OWL2
EDOC 2011
Axiom is the unit of information in an OWL2 ontology
xOWL – an Executable Modeling Language for Domain Experts
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xOWL: Extending OWL2
EDOC 2011
Axiom is the unit of information in an OWL2 ontology
New axiom
xOWL – an Executable Modeling Language for Domain Experts
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xOWL State Machine Library
xOWL: State Machine Example
EDOC 2011
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xOWL with Multiple Domain-Specific Perspectives
xOWL – an Executable Modeling Language for Domain Experts EDOC 2011
CP Concrete Syntax
xOWL Library for CP
xOWL Core Abstract Syntax
xOWL Library for UI
Language Engineer
Interpreter + Reasoner
..
..UI Concrete Syntax
Cognitive PsychologistUser Interaction Expert
xOWL – an Executable Modeling Language for Domain Experts
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Example of CAD Tool for User Interaction Expert
EDOC 2011
Domain-Specific Library Elements
Domain-Specific Concrete Syntax
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Conclusion
Using xOWL and the surrounding infrastructure we canEnable domain experts to model their knowledge themselvesEnable cross-domain collaboration based on models
Applied to our use caseExperts will be able to design the human-machine system as a wholeImprove the safety of critical systems
xOWL – an Executable Modeling Language for Domain Experts EDOC 2011
xOWL – an Executable Modeling Language for Domain Experts
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Perspectives
Rules:Rule language (SWRL) not integrated with xOWLFuture work: integration of xOWL language constructs within rules
CAD Tools:Currently manually codedFuture work: automatic generation of CAD tools from the declarative definitions of
concrete syntaxes
EDOC 2011
xOWL – an Executable Modeling Language for Domain Experts
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EDOC 2011
xOWL April 2011
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Multi-Level Modeling (1)
“Linguistic instantiation relates a model with the definition of the language of which it is an expression”
“Ontological instantiation relates two models whose subjects are in the same domain but on different logical levels.”[1]
Meta-language
Meta-Meta-model
Meta-model
Model
LanguageLinguistic instance of
Linguistic instance of
Defines ►
Defines ►Expressed using►
Expressed using►
Class Object
Dog My Dog
Linguistic instance of Linguistic instance of
Ontological instance of
Ontological instance of
[1] Kühne. (Mannheim University) Matters of (meta-) Modeling (Soft. & Sys. Mod.)[2] Atkinson, Kühne. (Mannheim University) The essence of multilevel metamodeling (UML 01)
22/04/2011
Multi-Level Modeling (2)
xOWL April 2011
Page 17
22/04/2011
Reduction of accidental complexity[1]:Do not introduce additional unnecessary concepts.
Multi-level model UML equivalent (2 levels)
[1] Atkinson, Kühne. The essence of multilevel metamodeling
