2. Design Process
Big Bang Theory uses it
“Ideas are born in the mind and
brought into being at the point
of a pencil.”
3. Design Process
Ideas can be communicated graphically
through sketching and computer.
Use of graphic software allows you to
transform ideas into graphic representations.
When words along cannot describe a new or
futuristic forms, sketches are needed to show
what can not be said.
4. Aspects of Design
Since the beginning of civilization, men and
women have used their imagination,
knowledge and curiosity to design and build
tools and machines to make their work easier.
(1)
As time went on, refinement made these tools
and machines more efficient and the lives of
those using them easier.
5. Aspects of Design
Design does not need to be entirely original –
improvements build on to one another and the
design evolves. (2)
Each step of the process build one the
previous steps
Designers do not find it necessary to “reinvent
the wheel”
6. Aspects of Design
Creativity and Design do not mean the same
thing!
Creativity is the combination of imagination,
knowledge and curiosity (16)
Design is the conception of an idea and its
development into a practical, producible and
usable process or product. (17)
7. Aspects of Design
Designers are concerned with three basic issues
(3)
The look and feel of the final product (aesthetic
design)
The successful operation of the final product
(functional design)
The manufacturing process and the choice of
materials (feasibility of manufacturing &
8. Functional design
The functional aspect of design implies that the
product will perform in the manner for which it was
intended.
“Does the product meet the functional design
objective?”
Example??
“Form follows function.” Louis Sullivan
Function is the primary importance, the overall
form (aesthetics) is part of the overall design and
is not separate
9. Aesthetic Design
Deals with form, or overall physical appearance.
Involves:
Color
Line
Style
Space
Contrast
Proportion
Balance
Examples?
The look of a product is often designed to send a
message or feeling about a product (6)
◦Example: shiny, red sports car = fast car
10. Engineering Design
Engineering design is a creative problem-
solving process
Designers use knowledge, creativity,
experience, and resources to create a new or
improved product
Design must be functionally efficient, meet the
design objective , be aesthetically pleasing
and meet the financial objective
11. Engineering Design
Designers and engineers are involved in
aspects of design process – Drafter needs to
be familiar with each step
Drafters are called upon in all parts of the
graphics communication process – works on
everything from initial sketches to final
presentation (7)
12. Design Process
Two basic models for the design process:
Traditional Engineering Design
Concurrent Engineering Design
Designers and Engineers will often
“customize” a process to fit their needs
13. Traditional Engineering Design
T.E.D uses a linear approach (8)
A design engineer will take the design of a product
from initial stages and carry it, step-by-step until it is
turned over to production
In simple terms: each person does their part
and passes the product on to the next.(9)
Once they are done, they don’t see the
product again unless there is a problem.
Manufacturing and marketing get little
thought until design process is done
15. TED Process
1. Basic idea is created or problem is assigned to design
engineer
2. Design engineer analyzes need for product – is it needed?
3. Objectives are set
4. Ideas are created
5. Ideas checked for feasibility – cycles thru step 4 as needed
6. Best solution is picked – may be prototyped for further
review
7. Prototype goes out to be evaluated – if it tanks or problems
found goes back to Step 4
8. Final drawing and product created
16. Concurrent Engineering Design
Done as a comprehensive team – everyone
works together (11)
Team consists of all aspects of the design,
manufacturing, marketing and servicing of the
product (10)
Considers the manufacturability, quality, life
cycle, cost and whether the final product will
meet the design objectives
Because everyone works together, there are
fewer delays and seldom a need to redesign
an item
17. Concurrent Engineering Design
Also known as concurrent engineering,
concurrent product design and simultaneous
engineering
Process came about quickly with computer –
based design and manufacturing tools
18. TED vs CED
Linear Process
Chief engineer
responsible for most of
design process
Chief engineer would
use many drafters and
technicians busy with
drawing and
documentation
Can not start on next
phase until last one
done
A comprehensive CAD and
computerized engineering
database serves as basis
for all aspects of project
Team members do not
need to be in one place –
can be anyplace in world
that can access the
database
Can work on multiple
areas at same time
Traditional Concurrent
19. CED
Concerned with making a better product in
less time – continuous quality improvements
used through out process (12)
Product’s life cycle is considered early
Life cycle: Total life of a product from conception
of an idea to the recycling of the materials it is
made from
20. Concurrent Engineering Design
Process is broken down into three main areas
that overlap throughout process to guarantee
total integration
Three areas:
Ideation
Refinement
Implementation
22. Concurrent Engineering Design
Ideation
Design problem is identified
Preliminary ideas developed
Preliminary design agreed upon
23. Concurrent Engineering Design
Refinement
Preparation of models and prototypes (Modeling)
Through physical, production and legal analysis
of the design (Design Analysis)
Design visualization or analysis of the aesthetics
24. Concurrent Engineering Design
Implementation
Analysis of production, financing, servicing,
documentation, final planning, life cycles
Concurrent engineering design is now the
most common method for design in most
industrial applications (13)
Significant quality improvement
Up to 40% reduction in project time and cost
As much as 80% reduction in design changes
