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Contenuto archiviato il 2024-05-18

Design Environments for Global ApplicationS

Obiettivo

DEGAS aims to combine structured (semi-formal) graphical methods for specification by picture and animation of global applications with formal methods for their analysis and verification. We will investigate to what extent UML is already suitable to model global applications and we will propose extensions. We will propose formal models of these applications based on the operational semantics of foundational process calculi for mobility. Static and dynamic analysis concentrate on two key-features of global computing: performance prediction and security. We will assess the foundational studies in a prototypical proof of concept environment that hides to the user as much as possible of the formal treatment. We will tune our development with case-studies on wireless telecommunication applications.

OBJECTIVES
DEGAS addresses foundational aspects for the design of global applications by enhancing the state of the art in scientific as well as engineering principles. The main concerns are the specification in UML and qualitative and quantitative analysis of global applications. We plan to define the key features of global (wireless) applications that should be exposed at an abstract level of specification and analysis. We provide formal relations between the (possibly richer or incomplete) UML models and the process calculi specifications to connect the specification and the verification environment by hiding as much formal details from the designer as possible. The static and dynamic analysis with case studies should bring to the definition of new linguistic constructs and new models to analyse and reason about performance and security of global systems.

DESCRIPTION OF WORK
DEGAS is organized into workpackages. Besides management and assessment of progress and results, we have (workpackage=WP):
WP3 (UML feasibility, modification and tool customisation) that customizes a tool to build the designer's interface and manipulate UML models;
WP4 (Extraction, reflection and Integration) that defines the interface between the specification part of the environment and the verification kernel. The extraction takes information from UML models and builds process calculi specifications; the reflection exposes to the user the results of the formal analysis in UML notation. The integration task is responsible for building a unique case tool out of the subtools developed during project lifetime;
WP5 (Dynamic analysis) is responsible for defining new linguistic constructs and new models to carry out (quantitative and security) dynamic analysis on transition-system based representations of global applications. The WP exploits also fine-grain models in which security and quantitative issues coexist;
WP6 (Static analysis) is responsible for specifying analysis in the flow logic and abstract interpretation approaches for determining the overall responsiveness of the system and to harden the design against denial of service attacks. We also investigate the usage of reachability information for controlling information leaks (to preserve confidentiality) and to ensure the correct authentication of devices;
WP7 (Case studies) is responsible for validating the development of the project as well for providing experimental guidance to the foundational studies.

The services we selected as case studies are:
(1) pilot service for mobile entertainment and;
(2) services accessible through Voice user interface.

Campo scientifico (EuroSciVoc)

CORDIS classifica i progetti con EuroSciVoc, una tassonomia multilingue dei campi scientifici, attraverso un processo semi-automatico basato su tecniche NLP. Cfr.: https://op.europa.eu/it/web/eu-vocabularies/euroscivoc.
La classificazione di questo progetto è stata convalidata dal team del progetto.

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