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Thomas Baar
The Fondue Toolset
3rd International KeY-Workshop Königswinter near Bonn June 8, 2004
Thomas Baar: The Fondue Toolset 2
Outline
- What is Fondue?
- Toolset
– Architecture – Current State – Current Problems
The Fondue Toolset Thomas Baar 3 rd International KeY-Workshop - - PowerPoint PPT Presentation
The Fondue Toolset Thomas Baar 3 rd International KeY-Workshop - - PowerPoint PPT Presentation
The Fondue Toolset Thomas Baar 3 rd International KeY-Workshop Knigswinter near Bonn June 8, 2004 Thomas Baar: The Fondue Toolset 2 Outline What is Fondue? Toolset Architecture Current State Current Problems Thomas Baar:
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SLIDE 3
Thomas Baar: The Fondue Toolset 3
Fondue -- Overview
- Software development methodology inspired by
FUSION
- Notation is similar to UML
- Advocates formal specification in Analysis phase
- Applied by students in projects
- Tested by developers of commercial software
Toolset: Concentrates on Analysis phase
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Thomas Baar: The Fondue Toolset 4
Fondue -- Models
Domain Model Environment Model Protocol Model Concept Model Behavior Model Operation Model Design Design Requirements Models Use Case Model Analysis Models A depends on B: a change in B induces a change in A A B
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Thomas Baar: The Fondue Toolset 5
Example - DrinkVendingMachine
2 . 9 0
1 2 2 3
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Thomas Baar: The Fondue Toolset 6
DVM – Environment Model
PhysicalShelf ShelfSelectBtn InformationPanel MoneyBox giveDrink selectDrink displayMoney insufficientFunds drinkNotAvailable
- utOfService
takeMoney returnMoney releaseMoney insertMoney boxIsFull boxIsNotFull EjectBtn ejectMoney setPriceOfShelf PricePanel DVM (Controller) isEmpty isReplenished
* *
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Thomas Baar: The Fondue Toolset 7
DVM – Concept Model
Shelf * isEmpty: Boolean drinkPrice: Money MoneyBox EjectBtn PricePanel
1 1 1 1 1 1 1 1 1
PhysicalShelf ShelfSelectBtn InformationPanel
* * 1 «id» «id» 1 1 1 1 1 1
<<system>> DVM (Controller)
- utOfOrder: Boolean
collectingMoney: Boolean amountRegistered: Money = 0
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Thomas Baar: The Fondue Toolset 8
DVM -- ProtocolModel
DVM
Ready CollectingMoney OutOfOrder
isEmpty isReplenished setPriceOfShelf insertMoney insertMoney selectDrink ejectMoney selectDrink boxIsFull boxIsNotFull isEmpty isReplenished setPriceOfShelf insertMoney
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Thomas Baar: The Fondue Toolset 9
DVM -- OperationModel
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Thomas Baar: The Fondue Toolset
Fondue Toolset -- Overview
- Support for Fondue-Notation
– Editors for Concept-, Environment-, Protocol-Model
(ensure strict compliance to Fondue-MM)
– Cross-check for syntactical correctness (Certifier) – Editor for Operation-Model (OCL)
- Animation of Specification
– Display of system state (object diagram)
- (Test Case Generation)
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Thomas Baar: The Fondue Toolset
Fondue Toolset -- Architecture
CaseTool (Together) FondueToolset Fondue-specific Repository (MDR) FondueToolset Editors
- Concept
- Environment
- Protocol
- Operation
- Object
Animator TestManager Certifier Editors
- Concept
- Environment
- Protocol
- Operation
- Object
Editors
- Concept
- Environment
- Protocol
- Operation
- Object
Editors
- Concept
- Environment
- Protocol
- Operation
- Object
Editors
- Concept
- Environment
- Protocol
- Operation
- Object
Editors
- Concept
- Environment
- Protocol
- Operation
- Object
Editors
- Concept
- Environment
- Protocol
- Operation
- Object
Editors
- Concept
- Environment
- Protocol
- Operation
- Object
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Thomas Baar: The Fondue Toolset
Notation – Defined by Metamodel
WFRs:
context Actor inv: ... context Class inv: ...
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Thomas Baar: The Fondue Toolset
Notation – Implemented by Editor
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Thomas Baar: The Fondue Toolset
Animator
Pre/Post-Spec
Animator Sequence
- f States
Ini-State Control-Info
Purpose:
- Satisfiability-Check
- Reality-Check
- Implementation of UML as
High-level Programming Language (Executable UML)
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Thomas Baar: The Fondue Toolset
Animator – Non-Determinism
a:A
att = 20
a:A
att = 1
a:A
att = 2
a:A
att = 3
a:A
att = 4
?
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Thomas Baar: The Fondue Toolset
Non-Deterministic Animation-- Solution I
Forbid non-deterministic specifications
– Post-state specifications must have only one solution
for given pre-state
– Specification style is (mainly) adopted in B (mainly:
non-deterministic specification are made explicit by usage of non-deterministic constructs)
– OCL-dialect OCLScript attempts something similar
✔
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Thomas Baar: The Fondue Toolset
Non-Deterministic Animation-- Solution II
Choose post-state among current possibilities
1) Compute all solutions for post-state spec 2) Next state is chosen (by user or automatically)
- i. Choose-operation is backtrackable
Approach of B.Legeard in BZTT: UML PROLOG Constraint- Solver UML2PROLOG SetOfPostStates
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Thomas Baar: The Fondue Toolset
Summary
Results
- Concept-,Environment-Editor compliant to MM
- Fondue-specific version of OCL-Editor
- Fondue-specific repository
- Check of well-formedness rules with certifier
- Stand-alone object editor
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Thomas Baar: The Fondue Toolset
Summary
Future work
- Integration (ObjectEditor, import, OCLE, ...)
- Refined Metamodel (including layout information)
- Parsing of OCL (requires Fondue2UML preprocessing)
- Animation
- Translation into format for constraint solver
- Adaptation of standard-solver ???
- Synchronization with Protocol model
- Front-end for refactoring application