1. Welcome W 3.1 Introduction to Engineering Design II (IE 202)
Chapter 1: Engineering Design 1 1

2. Today’s Learning Outcomes
By the completion of today's meeting, students should be able to:
Describe what Engineering Design is.
Express where/when engineers design?
Explain the roles/players in the design process.
Clarify variations in design environments. 2 2

3. Engineering Design When did mankind start designing?
People have been designing objects for as far back as Adam’s time: knives, basic tools, interior design, carpet, decorating … etc. 3 3

4. Time to Enjoy! Exercise # 0
Have you ever designed something?
Submit your answer in 10 minutes.
How about your vacation?
What was your plan when you joined the College of Engineering?
How did you select the courses for this semester? 4 4

5. Where/When do we design?
Food processing and Distribution:
New container for a juice product.
Design and Construction Industry:
Highway bridge for a construction project.
Automobile Manufacturers:
Heads-up instrumentation cluster. Toyota!
School System: Specialized facilities to accommodate students with disabilities. 5 5

6. The Design Process Who are the players in the design process? (5 m)
Definitions & Roles: => 6 6

7. Players in the design process
Who is the designer?
You!
The engineer is usually the designer. How does he do the design?
How does he start?
This will be covered in detail in this course. 7 7

8. Players in the design process
Who is the client?
The investor, motivator/driver for the design: government sector/company/ owner/group that wants the design to be conceived.
Designs could be done:
internally (within the company), or
externally (outside the company). 8 8

9. Players in the design process
Who is the user?
Person or group of people who will use the artifact (device, system), e.g.
Consumers who buy new juice
Drivers on the new highway
Drivers of new car
Disabled students and teachers
The Public – may raise ethical issues 9 9

10. Importance of each Player
What is the importance of each player in the process?
Designer: no design without him
Client: source of funding (and the idea in most cases)
User: Design won’t be successful if it doesn’t meet user needs 10 10

11. Roles of each Player
The designer must understand the client and user needs.
The client should understand user needs and communicate them to designer, if not designer may have to identify the user needs.
Ideally designers and clients must both understand the user needs. 11 11

12. Design Environments Large or small organizations
Large manufacturers or small start-up ventures:
Government agencies
Engineering Service Firms/Consultants
Projects may be large or small
May involve large number of colleagues/data
You may only work on small, detailed/confined portion of a large design (detailed design)
User needs are taken into account at project start-up for large projects (conceptual design) 12 12

13. Design Variations
There will be variations in designs due to different interpretations of project statements and user needs:
Airplanes – Wheel chairs - Buildings 13 13

14. Design Variations
Towers or small houses 14 14

15. Diverging Interests
Interests of Designers, Clients and Users could diverge and may lead to conflicting obligations
Thin metal juice can may be most inexpensive
May be easily recyclable
Sharp edges when crushed … ! safety hazard
Thickness affects sharp edges of crushed cans, but also cost.
They are always multiple criteria to consider to identify the final design. 15 15

16. Design Teams
Design Teams are very common in engineering. Many engineering problems are inherently multidisciplinary:
Examples - machines (electrical / mechanical) - medical instrumentation
Designers must understand clients/users/ technologies in very different environments
Designs require assembling teams with necessary expertise from diverse backgrounds, i.e. interdisciplinary teams. 16 16

17. Definition of Eng. Design
Definitions of Engineering Design could fill many books with different definitions and models of engineering design. We’ll consider the definition used by the text.
“Engineering Design is the systematic, intelligent generation and evaluation of specifications for artifacts whose form and function achieve stated objectives and satisfy constraints.” 17 17

18. Definition of Terms
Artifacts – human-made objects (things or devices that we are designing):
Most often physical (planes, chairs, etc.)
Sometimes also ‘paper’ products;drawings, plans, computer software, articles, books
Increasingly ‘soft’; electronic files that become ‘real’ when displayed on the screen
Form – shape or geometry of an artifact or the layout of a user interface
Function – those things that an artifact is supposed to do 18 18

19. Definition of Eng. Design
Specifications – precise descriptions of the properties of the object being designed:
Typically numerical values of performance parameters (indicators of artifact’s behavior) OR attributes (properties or characteristics of the artifact)
Example: Ladder design – unextended length of 1.5 metres is a geometric attribute, and the ability to access 3 meter heights is a performance specification 19 19

20. Definition of Eng. Design
Design Specifications:
The set of values that articulates what a design is supposed to do.
Basis for evaluating proposed designs (targets against which the success of a design can be measured).
Acceptance tests are usually written into the document.
Design Specifications are found through systematic, thoughtful generation. 20 20

21. Design Techniques/Processes
Systematic and Intelligent, yet still must support Creativity:
Help us think clearly
Make better decisions
Ways of asking questions and presenting and viewing the answers to those questions
Managing and organizing resources needed to complete a design project on time and within budget
Communication &documentation are key to successful design 21 21

22. Managing Engineering Design
A Good Design doesn’t just happen.
Management achieves organizational goals by planning, organizing, leading and controlling.
Planning – the process of setting goals and deciding best how to achieve them
Organizing – the process of allocating and arranging human and non-human resources so that plans can be carried out successfully
Leading – ongoing activity of exerting influence and using power to motivate others to work toward reaching organizational goals
Controlling – process of monitoring and regulating the organization’s progress toward achieving goals 22 22

23. Selection of Team Members
By the end of the week, teams will be formed by the instructor.
Every one has to introduce himself by writing his:
Name
Dept.
No. of hours finished
Housing 23 23

24. For next class Read chapter 1 Bring your own USB
Be ready for In-Class Assignment # 1
Best wishes 24 24