1. Engineering Design Process
Fall 2015

2. Reference Design for Electrical and Computer Engineers August 6, 2007
Ralph Ford, Chris Coulston 

3. Four Aspects of Engineering
Engineering & Society
The Engineering Design and Analysis Process
Foundational Principles
Data and modeling concepts

4. Engineering & Society
Good engineering solutions provide an overall benefit to society
Ethical engineers
Exhibit integrity, serve the public interest, and are not deceptive
Systems thinking is necessary
Everything is connected
Engineering solutions for multifaceted problems typically require interdisciplinary cooperation
Require wide range of perspectives and skill

5. The Engineering Design Process
Engages stakeholders throughout
Requires team work
Draws on diversity of perspectives and skills
Diversity fosters innovation
Driven by data, facts, experimentation, aesthetics, and values
Modeling is used to intelligently explore, test, and validate designs
Alternatives are identified, realistic constraints are used for real world success
Iterative process, improve solutions, brainstorm
Failure is learned from, leads to future positive outcomes
Presentation of data and products influences reception

6. Foundational Principles of Engineering
Calculus
Physics
Circuits
Chemistry
Structures
Dynamics
Fluid flow
Information flow
Heat transfer
Etc.

7. Data & Modeling Understanding data accuracy, precision, statistics
Modeling is increasingly important
Allows us to explore more and more of the possible design spaces
Coding is essential
Reduces risk (when done properly!)
Visualization of complex data is important
Helps extract vital information
Intuition
Presentation of complex solutions is crucial to acceptance
Communication skills
Some of the best engineers don’t sound like the best engineers

8. The Engineering Design Process

9. What is Design?
The word “design” is often used as a generic term that refers to anything that was made by a conscious human effort.
Design is also a process that is used to systematically solve problems.
Talk to students about how they use a sense of design every day. The process for getting ready for school is a good example.

10. What is a Design Process?
A design process is a systematic problem-solving strategy, with criteria and constraints, used to develop many possible solutions to solve or satisfy human needs or wants and to narrow down the possible solutions to one final choice.
Tell students: “This a primary focus of this course. You will learn what a design process is and apply it to several activities projects and problems”.
– International Tech & Eng Educators Assoc

11. Design Process
There are several design processes used in the different technical fields. The following are examples.
Tell students: “There are several examples used throughout the technical field.

12. Example Design Process
Identifying problems and opportunities
Framing a design brief
Investigation and research
Generating alternative solutions
Choosing a solution
Developmental work
Modeling and prototyping
Testing and evaluating
Redesigning and improving
– Design and Problem Solving in Technology

13. Example Design Process
Identify the need
Define the criteria
Explore/research/investigate
Generate alternate solutions
Choose a solution
Develop the solution
Model/prototype
Test and evaluate
Redesign and improve
– Engineering Drawing and Design (3rd edition)

14. The design process used for this presentation…
Tell students: “There are sevral examples used throughout the technical field.

15. Example Design Process
Define a Problem
Brainstorm
Research and Generate Ideas
Identify Criteria and Specify Constraints
Explore Possibilities
Select an Approach
Develop a Design Proposal
Make a Model or Prototype
Test and Evaluate the Design using Specifications
Refine the Design
Create or Make Solution
Communicate Processes and Results
There are many design processes that guide professionals in developing solutions to problems. The example that you see here is the design process that we will use for this course and the rest of the Project Lead The Way, Inc. courses you will take.

16. 1. Define a Problem Receive a problem to solve from the client.
Be inspired through media exposure of a current problem and take action.
Gather information.
Who are the stakeholders?
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

17. 2. Brainstorm
A group problem-solving process in which each person in the group presents ideas in an open forum.
Essential to feel open to express “crazy” ideas
Generate and record ideas.
Keep the mind alert through rapidly paced sessions.
Develop preliminary ideas.
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

18. 3. Research and Generate Ideas
Conduct interviews with those affected by the problem (stakeholders)
Research solutions that may already exist
identify shortcomings and reasons why they aren’t appropriate to a given situation.
Compile ideas and report findings to the team.
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

19. 4. Identify Criteria and Specify Constraints
Identify what the solution should do and the degree to which the solution will be pursued.
Identify constraints (i.e., budget and time are typical considerations).
Draft a Design Brief.
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

20. 5. Explore Possibilities
Communicate with others that are in position to critique/provide feedback
Consider further development of brainstorming ideas with constraints and tradeoffs.
Explore alternative ideas based on further knowledge and technologies.
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

21. 6. Select an Approach
Review brainstormed information and answer any lingering questions.
Narrow ideas down
Decide on final idea
group consensus
management
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

22. 7. Develop a Design Proposal
Explore the idea in greater detail with annotated sketches.
Make critical decisions such as material types and manufacturing methods.
Generate through computer models detailed sketches to further refine the idea.
Produce working drawings so the idea can be built.
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

23. 8. Make a Model or Prototype
Make models to help communicate the idea, and study aspects such as cost, performance, tradeoffs, aesthetics, etc.
Construct a prototype from the working drawings, so the solution can be tested.
Legal issues?
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

24. 9. Test and Evaluate the Design using Specifications
Design experiments and test the prototype in controlled and working environments.
Gather performance data; analyze and check results against established criteria.
Conduct a formal critique to flesh out areas of concerns, identify shortcomings, and establish any need for redesign work.
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

25. 10. Refine the Design
Make design changes; modify or rebuild the prototype
Make refinements until accuracy and repeatability of the prototype’s performance results are consistent
Update documentation to reflect changes
Receive user’s critique to provide outside perspective to help determine if established criteria have been met
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

26. 11. Create or Make Solution
Determine custom/mass production.
Consider packaging, marketing, legal, etc.
Mention the difference between Custom and MassProduction
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

27. 12. Communicate Processes and Results
Communicate the designer’s final solution through media such as PowerPoint, poster session, technical report, conference paper, journal paper, patents, copyright, etc.
Market the Product
Distribute
Site examples from the Coffee Cup, Product Evolution, and Gossamer Condor Activities.

28. The Engineering Design Process - Summary
The Engineering Design Process has no single form
All forms of the Engineering Design Process have the same basic elements
Usually expressed, grouped, and emphasized somewhat differently
Complex process
Takes time/experience to understand and become good at
Capstone course(s) will emphasize the overall process
Basic understanding is important to professional development of an engineer
Widely used, and effective/powerful when used wisely