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This research introduces the bigER modeling tool designed for flexible and visual entity relationship model specification.

March 27, 2026Open Access

The bigER Modeling Tool

Key Points

This research introduces the bigER modeling tool designed for flexible and visual entity relationship model specification.
Introduced bigER, a modeling tool with a graphical and textual editor.
Enabled hybrid modeling within Visual Studio Code IDE.
Integrated support for various entity relationship notations including UML and Crow's Foot.
Presented multi-notation support for enhanced usability.
Improved edge routing features for better visual clarity.
Achieved platform independence using web technologies.

Abstract

This paper introduces the first major release of the bigER modeling tool. bigER offers various features for flexibly specifying and visualizing Entity Relationship (ER) data models. Within the Visual Studio (VS) Code IDE, the tool enables hybrid modeling through a textual editor and a graphical editor to display and modify the textual and graphical ER model, respectively. Both editors are realized with a custom language to specify ER elements and allow multi-notation support (currently Bachman, Chen, Crow’s Foot, Min-Max, and UML). The bigER modeling tool incorporates the Language Server Protocol and is based on web technologies, which makes the tool platform-independent and easily extensible. We present the newest extensions of bigER, i.e., multi-notation support and improved edge routing.

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