4Frank Buschmann, Regin Meunier, Hans Rohnert et al. Pattern-Oriented Software Architecture[ M]. New York: John Wiley & Sons Ltd, 1996:1 - 50.
5T.J. Popp. Software Architecture Development for Pro- duce Line Software[A]. Proceedings of the 18th IEEE Digital Avionics Systems Conference [ C ]. USA: IEEE Computer Society Press, 1999: 106- 111.