1[5]Johnson W M.The promise and perils of spiral acquisition:a practical approach to evolutionary acquisition[J].Acquisition Review Quarterly,2002 (summer):175 -189.
2[6]Henderson D E,Gabb A P.Using evolutionay acquisition for the procurement of complex systems,Technical Report DSTO-TR-0481[R].Salisbury South Australia:DSTO Electronics and Surveillance Research Laboratory,1997.
3[1]Farkas K.Evolutionary acquisition strategies and spiral development process[J].Project Management,2003(7):10-14.
4[2]Hansen F,Foreman J,Albert C,et al.Spiral development and evolutionary acquisition:The SEI-CSE workshop,Special Report CMU/SEI-2000-SR-006[R].Pittsburgh:Software Engineering Institute,Carnegie Mellon University,2000.
5[3]Boehm B,Hansen W J.Understanding the spiral model as a tool for evolutionary acquisition[R].Pittsburgh:SEI,Carnegie Mellon University,2001.