生魚片模型

生魚片模型 Sashimi Model
生魚片模型是改進的瀑布模型，有如下的優點和缺點：
Overlapping phases 階段之間可以重疊
Advantages
Reduces overall schedule
Reduces documentation
Works well if personnel continuity
Disadvantages
Milestones more ambiguous
Progress tracking more difficult 過程跟蹤會變得困難
Communication can be more difficult