4[1]Ralph E Johnson.Components, Frameworks, Patterns[EB/OL].Available at:ftp://ftp.cso.uiuc.edu/pub/lang/smalltalk/papers/frameworks/framework97.ps,2001-12-05.
5[2]J van Gurp, J Bosch. Design,Implementation and Evolution of Object-Oriented Frameworks:Concepts and Guidelines[J].Software.Pract.Exper.,2001,(31):277-300.
6[3]Gamma E, Helm R, Johnson R, Vlissides J. Design Patterns-Elements of Reusable Object Oriented Software[M]. Addison-Wesley, 1995.
7[4]Bosch J, Molin P,Mattson M,Bengtsson P.Object Oriented Fra-meworks-Problems and Experiences[M].Building Application Frameworks,Fayad ME,Schmidt DC, Johnson RE(eds.).Wiley&Sons,1999.
8[5]Nemirovsky AM. Building Object-Oriented Frameworks[EB/OL].http://www.ibm.com/software/developer/library/oobuilding/index.html. Last verified November 2000. 2001-12-10.
9[6]Szyperski C. Component Software-Beyond Object Oriented Pro-gramming[M].Addison-Wesley,1997.
10[7]Pree W.Design Patterns for Object-Oriented Software Develop-ment[M].Addison-Wesley:Reading,MA,1994.
