1 / 16

Verification of behavioural elements of UML models using B

Verification of behavioural elements of UML models using B. Truong, Ninh-Thuan and Souquieres, Jeanine. 2005. In Proceedings of the 2005 ACM Symposium on Applied Computing Santa Fe, New Mexico, March 13 - 17, 2005 Presented by: James T. O’Hara SE 510, Fall 2005. A Tale of Two Tools ….

oistin
Télécharger la présentation

Verification of behavioural elements of UML models using B

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Verification of behavioural elements of UML models using B Truong, Ninh-Thuan and Souquieres, Jeanine. 2005. In Proceedings of the 2005 ACM Symposium on Applied ComputingSanta Fe, New Mexico, March 13 - 17, 2005 Presented by: James T. O’Hara SE 510, Fall 2005

  2. A Tale of Two Tools … • The application of formal methods allows the rigorous definition and analysis of the functionality and the behavior of a system. • It is capable of showing that the system is correct. • B is a method for specifying, designing and coding software systems. • UML is a widely accepted modeling language that can be used to visualize, specify, construct and document the artifacts of a software system.

  3. Combining UML with B • The derivation from UML specification into the B formal method is considered as an appropriate way to jointly use UML and B in practical, unified and rigorous software development. • The aim of the study was to use B support tools to analyze UML model properties.

  4. THE B METHOD • B is a formal software development method, originally developed by J.R. Abrial. • The B notation is based on set theory, the language of generalized substitutions and first order logic. • Specifications are composed of abstract machines that are similar to modules or classes.

  5. The UML Metamodel • The UML metamodel defines the complete semantics for representing object models using UML. • Abstract Syntax • Well-Formedness Rules • Semantics

  6. TRANSFORMATION OF UML TO B • The transformation of an attribute of a UML class to a variable of a B abstract machine can be performed as follows:

  7. What is a UML Collaboration Diagram • A collaboration diagram describes interactions among objects in terms of sequenced messages. Collaboration diagrams represent a combination of information taken from class, sequence, and use case diagrams describing both the static structure and dynamic behavior of a system.

  8. UML Collaboration Diagram • UML collaboration diagrams, are used to explore the dynamic nature of your software. Source: http://www.agilemodeling.com/style/collaborationDiagram.htm

  9. TRANSFORMATION OF THE COLLABORATION PACKAGE TO B • The Collaboration package is a sub-package of the Behavioral Elements package

  10. What is a UML State Diagram Figure 1. A seminar during registration. • UML state machine diagrams depict the various states that an object may be in and the transitions between those states. Source: http://www.agilemodeling.com/artifacts/stateMachineDiagram.htm

  11. TRANSFORMATION OF THE STATE MACHINE PACKAGE TO B • The State Machine package is a sub-package of the Behavioral Elements package.

  12. A CASE STUDY • Modeling of a printing system. • This system can be described as follows:the printing system is a system to print a file from a computer. • The use gives a command to print a file, and the system will respond according to its messages. Figure 3. Collaboration diagram of the printing system.

  13. Interaction B Abstract Machine

  14. Verification of UML Model Properties • The well-formedness rules of the Messages class applied on the Collaboration package and their B machines counterparts can be evaluated for completeness and consistency. • UML well-formedness rules can be represented by system invariants.

  15. CONCLUSION • In this paper, the author’s have presented a technique to transform the UML behavioral diagrams to a B specification. • With the contribution of the transformation of UML metamodel and their well-formedness rules into B, the semantics of the UML models can be translated into B properties. • Formal methods can then be used to specify and verify object-oriented systems.

  16. Additional References • The B-Book: Assigning Programs to Meanings, Cambridge University Press 1996. ISBN 0-521-49619-5 • The Object Primer: Agile Model-Driven Development with UML 2.0Scott Ambler, Cambridge University Press, Paperback, 3rd edition, 2004

More Related