Technological Impacts

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November 15, 2007
DRILL Answer the following in complete
sentences.

1. Technology performs a task by using an object
   that is not part of ____________?
2. What is a system?

1. The human body.
2. A system is a technology or process that has
parts and each part has a relationship with all
other parts and the whole.
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What do you think?
What are your thoughts about the impact of such a
technological development.
Speculate about the steps that were followed to
create such an amazing innovation.
The scramjet, an engine so blindingly fast that
it could carry an airplane from San Francisco to
Washington, DC, in about 20 minutesor even
quicker.
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Explanation

• There are a variety of formal and informal
  problem-solving strategies.
• The engineering-design process
• Systematic problem-solving strategy
• Criteria and constraints
• Used to develop many possible solutions to a
  problem

THE SCIENTIFIC METHOD
Criteria a standard on which a judgment or
decision may be based.
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Exploration

• Working in groups, arrange the cards in the order
  that engineers might have used to develop the
  Scram Jet.
• What might the engineers have been thinking about
  and doing in each step as they developed the
  Scram Jet?
• Present and defend your thoughts on the order of
  the tasks.
• What do you think each step might include?

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ENGINEERING DESIGN PROCESS

• Clearly Defined Steps
• Defining a problem
• Brainstorming
• Researching and generating ideas
• Identifying criteria and specifying
  constraints
• Exploring possibilities
• Selecting an approach
• Developing a design proposal
• Making a model or prototype
• Testing and evaluating the design, using
  specifications
• Refining the design
• Creating or making it
• Communicating processes and results

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ENGINEERING DESIGN PROCESS

• Design problems are seldom presented in a clearly
  defined form.
• b. Design needs to be continually checked and
  critiqued, refined and improved.
• c. Risk analysis is used to minimize the
  likelihood of UNDESIRED OUTPUTS of a new
  technology.
• d. Reduce the chance of system failure
  Performance Testing
• small-scale models
• computer simulations
• analogous systems
• least reliable parts

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ENGINEERING DESIGN PROCESS
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CLASSWORK / HOMEWORK

• Read the handout on Adaptive Device Design.
• Complete the exercises under State the Problems
  on the last page.
• For 2, list each step of the design process and
  how each is used in your development of a new or
  improved product.
• This is NOT a team exercise it is an individual
  exercise. What you do not finish in class today,
  complete for homework.
• Write neatly. Expand yourself with this
  assignment dont just get it done.

DUE MONDAY