ECOLEAD WP5 Meeting, Porto 2005

The WP5 workshop on Graph Theories, Formal Theories, Semiotics and Ontologies held in Porto was the second workshop with external experts. They were invited to explain the issues of Graph Theories, Formal Theories, Semiotics and Ontologies. The invited speakers were: Jorge Pinho Sousa, Goran Putnik, Joaquim Filipe, José Cordeiro and Sofia Pinto. The workshop took place in Porto in March 2005.