ECA was developed as an educational tool aimed at a diverse CS student population with programming experience ranging from "very little" to "very much": it allows students to quickly develop a prototype real-time Twitter Dashboard that really looks cool. And it is open to more advanced programming to challenge students who have more experience. The basis of ECA is a rule system that reacts to externally generated events.
To download this software please follow this link : https://github.com/utwente-db/eca/