Description: CmapTools is a free concept mapping software developed by the Institute for Human and Machine Cognition. It allows users to visually organize and represent knowledge in a node-link format to build concept maps.
Type: software
Description: SQL Developer Data Modeler is a free graphical tool that helps developers design complex relational databases. It provides a visual interface to model entities and relationships, generate DDL scripts, and reverse-engineer from existing databases.
Type: software