DAVIS A M. The design of a family of application- oriented requirements languages[J]. Computer, 1982, 15(5):21-28. DOI: 21

SALTON G, WONG A, YANG C S. A vector space model for automatic indexing[J].Communications of the ACM, 1975.18(11): 613-620. DOI: 613

Washington WIEGERS K E. Software requirements[M]. Washington:Microsoft Press, 1999.

SAVARESI S M, BOLEY D. On the performance of bisecting k-meansand PDDP[C]//Proc. of the 1st SIAM International Conference onData Mining.Chicago, USA: [s.n.], 2001: 1-14.

MACQUEEN J. Some methods for classification and analysis of multivariate observations[C]//Proc. of the 5th Berkeley Symposium on Mathematical Statistics and Probability. Los Angeles: University of California Press, 1967: 281-297.

TURNER C R, FUGGETTA A, LAVAZZA L, et al. A conceptual basis for feature engineering[J]. Journal of Systems and Software, 1999, 49(1):3-15. DOI: 3

张国生.需求演化过程建模[J].微电子学与计算机, 2012, 29(5):54-57. DOI: 54