Objetivo
The objective of DRAGON was to develop methods and provide tools for designing reusable software for distributed real-time applications of a long-lived nature (such as flexible manufacturing systems and space application systems).
Criteria for structuring systems in terms of reusable, target-independent Ada components were investigated in two aspects: formal specifications of module interfaces and operations, and support for distribution and target computer and plant configuration management.
Changes in target architecture and plant dimension and parameters are a major cause of unanticipated software changes, making software hard to reuse: this issue was addressed in the project by structuring the program as distributable units that were completely insensitive to target characteristics.
Provisions for reconfiguration, task migration and modification in non-stop mode require careful analysis of the Ada tasking system: the intended approach was to start from existing formalisations of Ada semantics and then extend them. Reusability was obtained by assembling components and tailoring highly generic ones. A database library of existing components was to be designed.
The objective was to develop methods and provide tools for designing resusable software for distributed real timme applications of a long lived nature (such as flexible manufacturing systems and space application systems). Criteria for structuring systems in terms of reusable, target independent Ada components were investigated in 2 aspects: formal specifications of module interfaces and operations, and support for distribution and target computer and plant configuration management. Changes in target architecture and plant dimension and parameters are a major cause of unanticipated software changes, making software hard to reuse: this issue was addressed in the project by structuring the program as distributable units that were completely insensitive to target characteristics. Provisions for reconfiguration, task migration and modification in nonstop mode require careful analysis of the Ada tasking system; the approach was to start from existing formalizations of Ada semantics and then extend them. Reusability was obtained by assembling components and tailoring highly generic ones. A database library of existing components was designed. The object oriented language DRAGOON was developed, along with a specification of its formal semantics. Preprocessing tools were developed to support the translation of DRAGOON into Ada. Run time support has been provided by the dragoon distributive executive (DDX), which handles interprocess communication between components, dynamic loading of components, and dynamic reconfiguration. The DEMON design method for reusable software was produced. There is a toolset which supports DRAGOON and the DEMON design method. Formal methods work investigated algebraic specification techniques in object oriented environments. The industrial enhancement of a maritime surveillance system was used as a test of the methods and tools developed.
The object-oriented language DRAGOON was developed, along with a specification of its formal semantics. It is like Ada, but its classes incorporate much richer constructs for describing data and methods (including concurrency).
Preprocessing tools were developed to support the translation of DRAGOON into Ada.
Run-time support has been provided by the Dragoon Distributive eXecutive (DDX), which handles inter-process communication between components, dynamic loading of components, and dynamic reconfiguration.
The DEMON design method for reusable software was produced. It is used with a formal specification such as object-oriented Z, and copes with concurrency and distribution. There is a toolset (eg structure editor) which supports DRAGOON and the DEMON designmethod.
Formal methods work investigated algebraic specification techniques in object-oriented environments.
The industrial enhancement of a maritime surveillance system was used as a test of the methods and tools developed in DRAGON. An object-oriented approach was followed.
Exploitation
The project will contribute to the industrial use of Ada and will advance industrial understanding of the problems and opportunities of software reuse.
Ámbito científico (EuroSciVoc)
CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..
CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..
- ciencias naturales informática y ciencias de la información software
- ciencias naturales informática y ciencias de la información base de datos
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Programa(s)
Programas de financiación plurianuales que definen las prioridades de la UE en materia de investigación e innovación.
Programas de financiación plurianuales que definen las prioridades de la UE en materia de investigación e innovación.
Tema(s)
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Las convocatorias de propuestas se dividen en temas. Un tema define una materia o área específica para la que los solicitantes pueden presentar propuestas. La descripción de un tema comprende su alcance específico y la repercusión prevista del proyecto financiado.
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Procedimiento para invitar a los solicitantes a presentar propuestas de proyectos con el objetivo de obtener financiación de la UE.
Régimen de financiación
Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.
Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.
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Coordinador
20128 Milano
Italia
Los costes totales en que ha incurrido esta organización para participar en el proyecto, incluidos los costes directos e indirectos. Este importe es un subconjunto del presupuesto total del proyecto.