Engineering — Design Cycle
The iterative engineering design process.
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digraph Design {
node [shape=box, style=rounded];
"Identify problem" -> "Research & specify";
"Research & specify" -> "Design & model";
"Design & model" -> "Prototype";
"Prototype" -> "Test & evaluate";
"Test & evaluate" -> "Refine";
"Refine" -> "Design & model" [style=dashed];
}