FUP - Formal Unified Process MSc.Miroslav Líška miroslav_liska@formal-analysis.com Slovak...

FUP - Formal Unified ProcessMSc.Miroslav Líška

miroslav_liska@formal-analysis.com

Slovak University of TechnologyFaculty of Informatics and Information Technologies

Bratislava, Slovakiawww.fiit.sk

1. Formal methods in software engineering2. Goals of Formal Unified Proces - FUP3. FUP methodology4. Validation UML models with FUP5. Formal-analyzer (usecase model)6. FML - Formal markup language

Agenda

Formal methods in software engineering

• Improvement in specification and realization process• Enhanced precision in syntax and semantics of system definition

• A lot of different languages, methodologies e.g. Z, objectZ, PUML, (note - UML, OCL: semiformal´) : …

Difficult synergy, difficult validation process

Problems

Goals of FUP

Enhancement of

• analysis/validation process between more specifications

• analysis/validation process between specification and realizations

• mathematics logics precision in software specifications and realizations

FUP methodology

• System and its behavior is represented through mathematical theories – set of formulas (e.g. theory of business process, theory of UML – customizable modal logic)

• Analysis process is based on verification consistency of theories, tautological results

• Validation process is based on automatic proving formulas against selected theories

Validation UML models with FUP (formal-analyzer)

• There must be written proper theories for validation, i.e. business process theory, UML theory

• UML model is translated into model of theory (theory interpretation) and also they are new theorems specified, which must be proved

• Formal-analyzer : software tool (currently only analytical model) which supports mathematical theory specification, realization, validation. UML will be plugin for parsing UML models into formal theories.

Business Process theory

…

UML theory

…

UML model transformation into model of theory (example)

cd Increase bank income using IT - Business strategy model

Deliver more loans

to the customer

Increase bank

income using IT

??? Individuals = {class1, class2, association1 …}

Predicates = {BG(class1), BG(class2), P(class3) .. }

Formal analyzercd UC Formal analyzer

Theory specifier

UC 101 - Specify theory

UC 202 - Validate correctness

UC 301 - Import UML model

Definition of- variables- functional symbols- predicates- supplementary symbols- axioms

- BusinessProcess theory- Risk Analysis theory- Formal UML theory

- .... any specified FML theory

«include»

«include»

Interpretation(UML) |= T1

T2

|- Formula(Interpretation(UML))

T2T1

FML - Formal markup languageMathematic theory

FML - Formal markup languageMathematic model of theory

FML - Formal markup languageBusiness process theory

FML - Formal markup languageUML model of theory (PARSED UML)

Thank you for your attention