Extensão do BrModelo: implementação de uma linguagem de comando para manipulação de diagramas EER

Abstract

Data modeling is a fundamental step in the development of systems that use relational databases, as it allows domain requirements to be represented in a clear and structured manner. In the Brazilian academic context, BRModelo stands out as a widely adopted tool for creating Entity–Relationship (ER) diagrams, offering an intuitive visual interface. However, its limitation to exclusively graphical manipulation can reduce productivity and flexibility of use. This work proposes an extension of BRModelo WEB through the integration of a command-line (CMD) module with support for a dedicated textual language for the creation and manipulation of conceptual diagrams, inspired by modern tools such as dbdiagram.io. The proposal complements the existing graphical interface, enabling a hybrid interaction—textual and visual—that promotes agility in modeling, project reproducibility, and new possibilities of use, such as automatic vali- dation in academic activities. The solution was evaluated through user experimentation, and the results indicated good acceptance, preservation of the original usability, and a perceived increase in efficiency in the modeling process. This approach expands the capabilities of BRModelo WEB and contributes to its modernization and integration with contem- porary development workflows.