Topic 5 Product Design
Technology Standards: Items directly related to the standards are shown in blue
How does a designer make
products the right size?
- clothing, shoes
State that ergonomics is multidisciplinary, encompassing
anthropometrics, psychological factors and physiological factors.
Describe a design context where the 5th–95th percentile
range has been used.
The number of sizes that a store has to provide to attract
customers is a significant factor in inventory costs. Ideally, stores would
like to have one-size-fits-all. Clothing above the 95th would rarely sell,
yet drive up inventory costs.
However, this does create a specialized market for a limited number of big
and tall stores designed to attract larger customers. Adult customers
needing sizes below the 5th percentile could modify existing sizes (for
example shorten pants and take in waistlines) or buy children's sized
- light switches, kitchen cabinets
Describe a design context where the 50th percentile has been
Explain the limitations of using the 50th percentile as a
means of designing for the “average” person.
Identify specific design contexts where the designer would
use percentile ranges for particular user groups.
Outline the significance of psychological factors (smell,
light, sound, taste, texture and temperature) to ergonomics.
Outline physiological factors that affect ergonomics.
Discuss the influence of perception when collecting data
relating to psychological factors.
Specifications: Write definitions for the terms in objectives 1 and
Deliverable: Place the
completed Word file in the IB Design Technology folder of your student
Work Group: individuals.
Is it acceptable to deliberately
plan for a product to become obsolete in a specified period of time?
The designer and society
Discuss moral and social
responsibilities of designers in relation to green design issues.
the market dictates what can be designed because if a product cannot be
sold at a profit it will cease to exist.
ultimate purpose of design is to 1) improve or 2) maintain the quality of
human existence. Unfortunately these goals can be contradictory. For
example, improving the lives of current inhabitants by burning fossil
fuels may threaten future inhabitants with things like coastal flooding
due to global warming.
Outline how planned obsolescence
influences the design specification of a product.
Compare the influence of fashion and
planned obsolescence on the product cycle.
Evaluate the influence of fashion and
planned obsolescence on the quality and value of a product.
Explain how aesthetic considerations
affect the design of products.
shape and form
texture and color.
Discuss the conflict that a designer
faces when attempting to balance form with function in the design of products.
resistance affects gas mileage. Optimizing for low air resistance limits
Sidney Australia opera house vs the
US Capital building's dome.
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