supported by the PEARL,GAVES(Macao Science and Technology Development Fund);Guizhou International Scientific Cooperation Project(Grant No.G[2011]7023);the National Natural Science Foundation of China(Grant Nos.61073022,61103013,91118007)
In model driven architecture (MDA), system requirements are first captured by UML (unified mod- eling language) use cases with sequence diagrams to describe their intended use and implemented by classes of objecte...