The Engineering Design Process Presentation 2.1.1
NASA Design Process Model
Identify the Problem Example: A device is needed that would allow a person with rheumatoid arthritis to open jars with different size lids
Develop a Design Brief Identify Criteria and Constraints Criteria-What exactly should the device do? Constraint-What should it not do?
Use a KWL chart What information must we locate? Perform the research Gather Information Use a KWL chart What information must we locate? Perform the research
Brainstorm Alternative Ideas All ideas are ok This begins the creative part Any format is ok. (words, sketches)
Decide on the Final Design Narrow down the possibilities Decide on the best idea Justify the idea
Perform Developmental Work Create sketches & formal documents. Test ideas and materials
Follow your plans & drawings Revise if necessary during prototyping Build the Prototype Follow your plans & drawings Revise if necessary during prototyping
Test and Evaluate Does it work as anticipated? Does it meet all criteria and constraints?
Redesign or Refine If it works, improve it. If it doesn’t work, redesign it. What went wrong? How can we fix the problem?