Tom Sawyer Perspectives is a low-code graph and data visualization and analysis development platform with an integrated design and preview interface and extensive API libraries. The platform integrates enterprise data sources with powerful graph visualization, layout, and analysis technology to solve big data problems. Perspectives enables developers to quickly develop production-quality, data-oriented visualization applications. Two graphic modules—the Designer and Previewer—are used to build applications to visualize and analyze the specific data that drives each project. Using the Designer, developers define the schema, data sources, bindings, rules, views, filters, searches, and analyses. To simplify schema creation, several integrators support schema extraction. Developers can also use the Designer to specify custom toolbars, tooltips, context menus, and graphical viewing and editing behaviors. With the Previewer, they can iteratively view the application design without needing to recompile. When used together, the Designer and Previewer provide an efficient round-trip process that dramatically speeds up application development.