Designing a Product

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Designing a Product
Product design is usually a problem that requires
a creative Design and/or manufacturing solution .
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Design Process

• 1. A situation is posed or confronted that
  requires
• a practical solution.
• 2. Analyze the situation (discussion and
  clarification)
• Write a brief (clear definition of the problem to
  be solved)

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Design Process

• 4. Carry out research (patent review etc.)
• 5. Develop design specification (design limits)
• Develop conceptual design solutions
• Select a preferred solution

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Design Process
8. Prepare working drawings and plan ahead 9.
Construct a prototype 10. Test and
evaluate design
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Social Impact
Does the design help our lives? Is it
environmentally friendly? Is society better off
with the product? Does it inspire others? ..
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Ethics in Design
Reconciling conflicting obligations e.g., meeting
client interest and public obligations. Good
judgment should be exercised.
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Engineering Design
Is the process of converting an idea or market
need into the detailed information from which a
product, process or system can be made
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Markets are Dynamic

• Some characteristics of their changes
• Increasingly complex products
• Vast amounts of information from many different
  fields must be handled during the design process
• Large design teams
• Seldom an individual can undertake the complete
  design process large teams are often necessary,
  with potential communication problems

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Markets are Dynamic

• Pressures from external influences
• with advancing technology, user expectations are
  rising. Competition is intense and new products
  with improved value to customers are continually
  appearing.
• Increasing concern with individual and
  environmental safety and product liability.

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Conceptual Design Phase
Concepts with the potential of fulfilling the
requirements listed in the target specification
must be generated. Overall functional and
physical relationships must be considered and
combined with preliminary embodiment features.
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Open-Ended Problems

• Do not have unique correct solutions, though
  some
• solutions are clearly better than other.
• Problem statements are generally vague and
  considerable
• clarification is needed before design work can
  commence.
• There is seldom sufficient information,
  additional info about
• requirements and constraints should be
  gathered and put into
• a clear DEFINITION OF THE PROBLEM

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Open-Ended Problems

• CRITERIA for use during EVALUATION should be
• established they are the basis for a DECISION.
• CREATION must be stimulated by IDEAS and
  supported
• by KNOWLEDGE.
• FEEDBACK loops are essential.

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Analytical Problems

• Subject area well defined
• Problem precisely stated
• Sufficient information, often a model, is
  supplied
• Correct solution available

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Logistics 1
2 Weeks
1 Week 2 Months
1 Week
Problem Definition Jan. 14/16
Preliminary Design Jan. 21/23
Preferred Solution Jan. 28/30
Detailed Design Feb. 4
Design Presentation April. 22
Group Report April. 29
Get many Solutions
Report Due Written Specifications For a
selected Design Jan. 28 Must have a Gantt Chart
1.Drawings 2.Fabrication 3.Prototyping 4.Testing 1
st Presentation Feb. 11 Use Spring Break for
fixing problems
Logistics 2

• Progress Report
• Due on every Tuesday
• What was discussed?
• Action Items

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