Tradeoffs are the first principles that produced the design models.
Relationships between curves, contours and land were important to Tiffany, who actually developed the final design model.
This was the fifth design model of the rifle as four previous designs had been abandoned.
The virtual function bus connects the different software components in the design model.
The process takes as input requirements and produces a design model.
The produced design model represents separate concerns and their relationships.
In other words, Enishi had no specific design model.
This design model shows the close dependence of manufacturing on geometry.
Watsuki says that he used no specific design model for Aoshi.
Some of the lines between these design models may not be completely sharp.