The Rational Model
The Rational Model was independently developed by Simon and Pahl and Beitz. It posits that:
- designers attempt to optimize a design candidate for known constraints and objectives,
- the design process is plan-driven,
- the design process is understood in terms of a discrete sequence of stages.
The Rational Model is based on a rationalist philosophy and underlies the Waterfall Model, Systems Development Life Cycle and much of the engineering design literature. According to the rationalist philosophy, design is informed by research and knowledge in a predictable and controlled manner. Technical rationality is at the center of the process.
Read more about this topic: Design, Design As A Process
Famous quotes containing the words rational and/or model:
“After I went to bed I had a curious fancy as to dreams. In sleep the doors of the mind are shut, and thoughts come jumping in at the windows. They tumble headlong, and therefore are so disorderly and strange. Sometimes they are stout and light on their feet, and then they are rational dreams.”
—James Boswell (1740–1795)
“The best way to teach a child restraint and generosity is to be a model of those qualities yourself. If your child sees that you want a particular item but refrain from buying it, either because it isn’t practical or because you can’t afford it, he will begin to understand restraint. Likewise, if you donate books or clothing to charity, take him with you to distribute the items to teach him about generosity.”
—Lawrence Balter (20th century)