| Resumo: | The IVY workbench is a model-based tool that supports the formal verification of interactive computing systems. It adopts a plugin-based architecture to support a flexible development model. Over the years the chosen architectural solution revealed a number of limitations, resulting both from technological deprecation of some of the adopted solutions and a better understanding of the verification process to support. This paper presents the redesign and implementation of the original plugin infrastructure, originating a new version of the tool: IVY 2. It describes the limitations of the original solutions and the new architecture, which resorts to the Java module system in order to solve them.
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