Editing Waterfall model (section)

==Modified waterfall models==
In response to the perceived problems with the "pure" waterfall model, many 'modified waterfall models' have been introduced. These models may address some or all of the criticisms of the "pure" waterfall model.

These include the rapid development models that [[Steve McConnell]] calls "modified waterfalls":<ref name=rapid/> Peter DeGrace's "sashimi model" (waterfall with overlapping phases), waterfall with subprojects, and waterfall with risk reduction.  Other [[software development model]] combinations such as "incremental waterfall model" also exist.<ref>{{cite web
   | title=Methodology:design methods
   | url=http://myprojects.kostigoff.net/methodology/development_models/development_models.htm 
}}</ref>