1. The existence of refinement mappings
2. Unified verification and monitoring of executable UML specifications
3. Liveness Checking as Safety Checking
4. Stateful breakpoints
5. Sagar Chaki , Edmund M. Clarke , Joël Ouaknine , Natasha Sharygina , and Nishant Sinha . 2004. State/Event-Based Software Model Checking . In Integrated Formal Methods, Eerke A. Boiten, John Derrick, and Graeme Smith (Eds.). Springer Berlin Heidelberg , Berlin, Heidelberg . 128–147. isbn:978-3-540-24756-2 Sagar Chaki, Edmund M. Clarke, Joël Ouaknine, Natasha Sharygina, and Nishant Sinha. 2004. State/Event-Based Software Model Checking. In Integrated Formal Methods, Eerke A. Boiten, John Derrick, and Graeme Smith (Eds.). Springer Berlin Heidelberg, Berlin, Heidelberg. 128–147. isbn:978-3-540-24756-2