The Design Process
The design process is achieve by following 10
stages.
1-Identify the problem/product innovation
2-Define the working criteria/goals
3-Research and gather data
4-Brainstorm / generate creative ideas
5-Analyze potential solutions
The Design Process
continue
6-Develop and test models
7-Make the decision
8-Communication and specify
9-Implement and commercialize
10-Perform post-implementation review and
assessment
Stage -1: Identifying the
problem/product innovation
• Engineers are problem solver: and the
problems they solve are often identified as
the specific needs and problems of
customers
• Example:
– increased gas mileage
– Safety devices for kid, monitors, etc..
Stage 2: Define the working
criteria and goals
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How much will it cost?
Will it be difficult to produce?
What will be the size, weight, strength?
What will it look like?
Will it be easy to use?
Are there legal concerns?
Will it be reliable?
Stage 2: Define the working
criteria and goals
Continue
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Will it meet the EPA standard?
Is this what the customer truly wanted?
Will our customers want to purchase it?
Will customers want to purchase this
version instead of a competitor’s product?
• Is it feasible for our customer to buy it?
Stage 3: Research and gather
data
• What information has been published about
the problem?
• Is there a solution to the problem that
already may be available?
• If the answer to the above is yes, who is
producing it?
• What are the advantages of their solution?
• What are the disadvantages to their
solution?
Stage 3: Research and gather
data
Continue
• What is the cost?
• Is cost significant issue?
• What is the ratio of time compared to
overall cost?
• Are there legal issues to consider?
• Are there environmental concerns which
must be considered?
Stage 3: Research and gather
data
Continue
Information can be obtained
• Libraries
• Professional Society
• Journal, publications and newsletter
• Newspapers and magazines
• Market assessment surveys
Stage 3: Research and gather
data
Continue
• Government publications
• Patent searches and listings
• Technical salespersons and their references
catalogs
• Professional experts including researchers,
professors and other scientists
• The competition’s product (how they
designed it? Disassemble their product and
study it
Stage 4: Brainstorm / Generate
creative ideas
• Creative problem solving is a major method
of generating multiple ideas to a problem by
a technique called brainstorming
• No preliminary judgments are made about
any member’s idea, and no negative
comments are allowed
• The goal here is to list as many ideas as
possible
Stage 5: Analyze potential
solutions
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Computer analysis technique
Analysis of compatibility
Consistency of testing
Estimation
Economic analysis
Common sense
Analysis using basic engineering principles
and laws
Stage 6: Develop and test models
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Mathematical models
Computer models
Scale model
Diagrams or graphs
Durability
Ease assembly
Stage 6: Develop and test models
Continue
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Reliability
Strength
Environmental
Quality consistency
Safety
Stage 7: Make the decision
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Cost
Production Difficulty
Size, weight, strength
Appearance
Convenient to use
Safety
Legal issues
Reliability/Durability
Recyclability
Customer Appeal
Point Available
20
15
10
5
10
5
15
5
10
#1
17
8
7
3
7
4
9
4
8
#2
15
12
8
3
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3
11
2
9
Stage 8:Communication and
specify
• Communicate data and design for each
specific solution and get input
Stage 9:Implement and
commercialize
• Implement the best solution
• Apply methods of business to for profit
Stage 10:Perform postimplementation review and
assessment
• Check if the final product is giving you
what you actually wanted from feasibility
and if the consumer like it, etc.