aSVERD

aSVERD (A Scaleable Vector Entity Relationship Diagram) is a simple Java system (3 classes) for generating entity relationship diagrams (ERDs) from an existing database as scalable vector graphics (SVG). The system is run from the command line to generate the initial SVG file. No attempt is made to lay out the tables other than as a grid. The diagram can be round-trip updated against the database and table positions, notes, etc. will be preserved. Connecting lines between the tables are generated by JavaScript in the SVG, rather than being just “lines”. This way, they stay connected to the tables with which they are associated, being redrawn each time the diagram is displayed.