Enabling Model-Driven Schedulability Analysis in the Development of Distributed Component-Based Real-Time Applications

摘要

This work presents a strategy to include temporal behaviour models in deliverable software components in order to develop hard real-time component-based distributed applications, keeping the opacity and composability features that are inherent to the components paradigm. The Deployment and Configuration of Component-based Distributed Applications Specification of the OMG has been extended to include and manage the information that is required to design, analyse, and configure component-based applications with hard real-time requirements. The real-time data added to a component interface enable the application designers to validate scheduling and design decisions without any knowledge of the component internals. Besides, real-time reusable and composable analysis models, developed according to a concrete modelling methodology, are added to each implementation of the component interface. In the context of a concrete application, they are processed by tools to generate the complete real-time analysis model of the application, which is used to evaluate the configuration parameters that guarantee its schedulability.