WEBVTT

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>> In this lecture,
we're going to talk

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about the engineering design
process, a process that's very,

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very important for engineers.

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The design process is
a process of conceiving

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and inventing ideas mentally
and communicating these ideas

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to others in a form that
is easily understood.

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So in design, most of the
time there is a problem

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or requirement that you're
trying to solve or achieve

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and the design involves creating
a solution to this problem

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in order to satisfy
the requirements.

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And there're two primary
purposes for the design process.

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The first one is personal
expression and product

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or process development.

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Aesthetic design, an aspect
of design is concerned

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with the look and the
feel of the product,

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so how it looks and
how it feels.

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On the other hand, the
functional design is concerned

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with the aspect of the function
of the product or process.

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That means you want to make sure

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that the product possesses
a form that's related

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to the purpose or the
function of that product.

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Product design is the process
used to create new products,

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for instance, automobiles,
cell phones, new appliances.

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It's a very complex activity
that includes many aspects

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and not just the actual creation
of the solution to the problem

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or the product itself, but
also things like marketing,

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production, sales, service,
function, and profit analysis,

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as well as satisfying the
needs of the customer,

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making sure that it's safe
for the customer and safe

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for the environment and also
profitability to the company.

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System design, on
the other hand,

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is not to create a
physical product,

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but it creates a new
system or process.

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A system is an orderly
arrangement of parts or steps

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that are combined in order
to serve one general goal.

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Going through the
engineering design process,

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it can be defined as a
problem-solving process

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that uses knowledge, resources,
and existing products in order

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to create new goods or
improve new processes

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or improve goods or
improve processes.

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Engineering design
has both aesthetic

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and functional elements
and can be broken

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down into broad categories
of designing a product,

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called product design,
or designing a system.

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Engineering design is one of the
processes normally associated

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with an entire engineering
business or enterprise,

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starting from the receipt of
the order or product ideas,

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to maintenance of the product,
and all stages in between.

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An engineering design involves
both a process and a product.

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A process is a series of
continuous actions ending

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in a particular result.

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And a product is a
physical thing or anything

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that is produced as a
result of some process.

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Traditionally, the engineering
design process can be broken

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down into six sequential steps.

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You can look at a
traditional engineering design

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as a linear approach,
meaning you go to step one

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and then step two, step three.

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But the process is
actually iterated.

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So as the design process
moves through each step

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in a sequential manner, any
problems are encountered,

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you may return to previous step
or go back to previous steps

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and repeat the process in
order to improve your design.

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And the steps involved are
first, problem identification

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and then generation
of preliminary ideas,

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followed by refinement of
those ideas and analysis

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of those ideas in order
to make a decision

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to which particular design to
pursue further and implement.

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Implementation is the last step.

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With the step two, problem
identification, you would need

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to briefly state the problem,
as well as the requirements

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and limitations of the problem,
any needed information in order

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to solve the problem,
considerations of market.

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You need to include useful
information as graphs, data,

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sketches, and schematics that
improve the communication

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of findings and also aid
in the making a decision.

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Second step in engineering
design process is a generation

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of preliminary ideas.

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And the idea is to
accumulate as many ideas

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for solving the problem

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or satisfying the
requirements as possible.

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And this can be done by
brainstorming sessions,

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where in your team, each person
would contribute to any ideas

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that they have that might lead
to the solution of the problem.

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And during the brainstorming
session,

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this is really not the time

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to start thinking whether the
generated preliminary ideas

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would really ultimately
solve the problem.

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So you're not really
looking at the viability

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or effectiveness of
each design idea.

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You just list as
many as possible.

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So the idea under brainstorming
under preliminary ideas is

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to generate a long list.

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The more preliminary
ideas you have

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to solve the problem,
the better.

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The next step is refinement.

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And under this stage,
you select several

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of the better preliminary
ideas and you refine them.

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And during this stage, you might
start generating scale drawings

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that allow useful computations
and measurements in order

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for you to compare
the different designs.

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So a refinement, you're going
to be looking at several

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of the preliminary ideas, the
better ones, in order to be able

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to compare them in the next
stage, which is analysis.

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During the analysis
stage, you evaluate

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and compare the best designs
with respect to some set

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of criteria, including cost, for
instance, strength, function,

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market appeal, and other
important properties.

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During analysis, this is when
you use your knowledge of math,

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physics, and engineering
in order

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to determine the
suitability of the design

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so that you can compare the
advantages and disadvantages

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of the different design options
so you can have a good basis

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for making a decision,
which is the next step.

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And during the decision
stage, actually you're going

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to select the best design based
on the analysis that you did.

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You will rank the alternative
designs based on some criteria,

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determined with respect
to the relative importance

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of the decision criteria,
such as things like function,

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human factors, market analysis,
strength, production, cost,

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profitability, appearance,
and other factors

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that you think might
be important

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in determining the best design.

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The decision is usually
displayed

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in what's called a decision
table that lists down each

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of the design options,
the main design options,

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and lists down all the
criteria and the points

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that each design option gets
from each criteria in order

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to determine the
final overall score

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so can rank your design options.

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After you've made a
decision, obviously,

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the next step is implementing
the design that came

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out to be the best with
respect to your criteria.

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And during the implementation
part,

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you will be creating working
drawings, detailed drawings

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that include not only isometric
but multi-views with dimensions,

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as well as assembly drawing
as stated in the previous lab

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on working drawings
and assemblies.

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You will also include
specification

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and detailed instructions on
the fabrication, manufacture,

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packaging, et cetera
of the product.

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Those are the traditional steps

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that are taking sequentially
all the done iteratively

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and repeatedly as needed.

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Nowadays, instead of doing
the traditional sequential

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engineering design
process steps,

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we have something called a
concurrent engineering design,

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which it's called concurrent

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because there's three main
stages, ideation, refinement,

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and implementation, that
actually happened sort

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of concurrently and overlapping.

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So the engineering
design process consists

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of these overlapping
areas called ideation,

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refinement, and implementation.

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During this time,
these different stages,

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you use the same CAD database.

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So the 3-D model is right in
the center of this process.

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So under ideation, you
include problem identification,

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generation of preliminary ideas,
as well as preliminary design,

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sort of parallel to
the first few steps

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of the traditional
engineering design.

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And then, during the refinement
stage, you use modeling,

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design analysis, design
visualization, and simulations,

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sort of parallel to
the middle stages

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of the traditional
engineering design process.

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And then finally,
implementation,

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that includes not just
creating the product itself

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but also servicing
whatever it is

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that you have created once your
customers by them: financing,

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marketing, producing, planning,

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and documentation
of this product.

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So very similar to the
traditional sequential steps,

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but the three stages
are overlapping.

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So you can go from one to the
other depending on your progress

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in order to make needed
adjustments easier.

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So under the ideation stage,
it's a structured approach

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to thinking for the purpose
of solving a problem.

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So this is where you first
initially identify the problem,

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briefly like we did, and
then create preliminary ideas

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and preliminary design

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that would hopefully
solve the problem.

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In the problem identification
stage, the parameters

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of the design are
set before attempting

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to find a solution
to the design.

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So problem identification
includes the following

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for an element: problem
statement summarizing the

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problem to be solved,
research that's needed

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for relevant information
that will be useful

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to the design team, what's
already existing there,

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what are the problems that
those existing designs have

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and how we can improve them,
data gathering so you can look

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at feasibility studies
whether we really a need

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for this particular
design or improvement

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that you're looking at.

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You will look at market needs,
benchmarking with a competition,

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what's already out there and
how you can improve them.

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Rough measurements,
such as weight and size

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of those existing products.

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Looking at the objectives
of the things

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to be accomplished by the team.

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Also limitations such
as design specifications

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and size, weight and so on.

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Materials, as well as
limitations with respect

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to safety regulations,

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environmental regulations,
and those things.

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And also creating a schedule
to organize the activities

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of the design team into
a sequence to make sure

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that you have a timeline and
you will do your best in order

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to adjust to that timeline.

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In generating preliminary ideas,

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you will still use the
brainstorming process.

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You identify, is the
key, as many solutions,

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possible solutions
to the problem.

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The more ideas you
have initially,

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the better because it
will be easy to cross out,

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from that list of
possible solutions,

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those that will not work.

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But this is the time
that you have to be

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as creative as possible.

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This is the most creative
part of the design process.

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In the ideation phase, you need
to make rough sketches and notes

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and conceptual computer
models in order

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to describe the ideas during
the brainstorming process

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so you don't forget them.

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Models or drawings are
very useful in order

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to communicate new
ideas through the use

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of rough sketches
and computer models.

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So you want to make sure that
you capture all of the ideas

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that are generated during
the brainstorming process

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by typing them, making sketches,
computer models and so on.

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Inventive or creative ideas can
come from a number of sources,

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so from each member of the
group as well as research,

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looking for surveys, looking
at competition reviews,

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library reference
materials, vendor catalogs,

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looking at going to stores and
seeing what's already available

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and how they can be improved.

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A design notebook should be
used to record all ideas.

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What you don't want to happen
is have some really good ideas

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and you completely forget them

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because you didn't capture
them completely during your

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brainstorming session.

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A well-documented notebook is
critical for recording ideas

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for later synthesis and to
provide legal groundwork

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for patents and other proof
of intellectual ownership.

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It's very important.

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If you come up with
something that's original,

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you need to make sure
that you document.

00:13:59.256 --> 00:14:03.576 A:middle
Under refinement, it's
a repetitive, iterative,

00:14:03.576 --> 00:14:07.296 A:middle
or cyclical process that is
used to test preliminary designs

00:14:07.756 --> 00:14:09.516 A:middle
and make changes if necessary.

00:14:10.706 --> 00:14:14.476 A:middle
The refinement stage normally
begins with rough sketches

00:14:14.476 --> 00:14:17.656 A:middle
and computer models to create
dimensionally accurate drawings

00:14:17.656 --> 00:14:17.976 A:middle
and models.

00:14:18.596 --> 00:14:22.266 A:middle
The refinement stage is heavily
dependent on graphics in order

00:14:22.266 --> 00:14:23.726 A:middle
to document, visualize, analyze,

00:14:23.726 --> 00:14:25.806 A:middle
and communicate the
design ideas.

00:14:26.356 --> 00:14:28.906 A:middle
And these refinement
drawings are used

00:14:29.536 --> 00:14:32.316 A:middle
to analyze the preliminary
design

00:14:32.316 --> 00:14:34.076 A:middle
so that you can compare
them later on.

00:14:34.556 --> 00:14:38.576 A:middle
And one way of analyzing
this design is by modeling,

00:14:39.276 --> 00:14:42.836 A:middle
where you represent
abstract ideas, words,

00:14:42.836 --> 00:14:47.046 A:middle
and forms through some
use of simplified texts

00:14:47.806 --> 00:14:49.656 A:middle
and images and other tools.

00:14:50.566 --> 00:14:55.746 A:middle
A descriptive model presents
abstract ideas or processes

00:14:55.746 --> 00:14:57.656 A:middle
in the recognizable form.

00:14:57.656 --> 00:14:59.746 A:middle
A predictive model is
one that can be used

00:14:59.826 --> 00:15:02.126 A:middle
to predict the
behavior/performance

00:15:03.186 --> 00:15:05.066 A:middle
of those designs.

00:15:05.066 --> 00:15:10.236 A:middle
A mathematical model uses
mathematical equations in order

00:15:10.286 --> 00:15:13.826 A:middle
to represent the behavior
of the different components

00:15:13.826 --> 00:15:15.336 A:middle
of a system or design.

00:15:15.676 --> 00:15:18.226 A:middle
A scale model is a physical
model that's created,

00:15:18.336 --> 00:15:23.486 A:middle
usually not to an actual
scale, maybe a smaller scale,

00:15:24.446 --> 00:15:28.446 A:middle
in order to analyze the
viability of a design.

00:15:28.966 --> 00:15:31.246 A:middle
Rapid prototyping
is very important.

00:15:31.816 --> 00:15:36.846 A:middle
It's used to describe several
related processes that allow you

00:15:36.846 --> 00:15:42.146 A:middle
to create real models
directly from 3-D CAD database.

00:15:42.316 --> 00:15:46.776 A:middle
This rapid prototyping is
very important nowadays.

00:15:46.846 --> 00:15:49.246 A:middle
Additive manufacturing or use

00:15:50.006 --> 00:15:55.506 A:middle
of 3-D printers can accomplish
this task of creating really,

00:15:55.576 --> 00:15:59.986 A:middle
really quickly real models
from 3-D CAD drawings.

00:16:01.546 --> 00:16:05.136 A:middle
Under refinement
is design analysis,

00:16:05.136 --> 00:16:09.796 A:middle
which involves the evaluation
of each of the proposed designs,

00:16:10.146 --> 00:16:12.946 A:middle
based on the criteria
established

00:16:13.386 --> 00:16:16.206 A:middle
in the ideation phase
based on the requirements

00:16:16.446 --> 00:16:17.686 A:middle
and statement of the problem.

00:16:19.156 --> 00:16:24.626 A:middle
It is the second major or stage
of the refinement process.

00:16:25.846 --> 00:16:29.616 A:middle
Typical, there's different types
of analyses that you might need

00:16:29.666 --> 00:16:31.626 A:middle
to do: property analysis,

00:16:31.626 --> 00:16:33.356 A:middle
looking at the physical
properties

00:16:33.396 --> 00:16:36.026 A:middle
of the different designs,
functional analysis

00:16:36.026 --> 00:16:39.586 A:middle
to determine whether
the design is going

00:16:39.586 --> 00:16:43.606 A:middle
to do what it's intended
to do as its function,

00:16:43.686 --> 00:16:47.606 A:middle
human factors analysis
looking at what

00:16:47.606 --> 00:16:50.636 A:middle
if the product serves the
physical, emotional, quality,

00:16:50.636 --> 00:16:53.286 A:middle
mental, and safety
needs of the consumer,

00:16:53.546 --> 00:16:56.136 A:middle
which presumably are humans.

00:16:56.866 --> 00:16:59.176 A:middle
Aesthetic analysis makes sure

00:16:59.176 --> 00:17:01.316 A:middle
that it's pleasing
and appealing.

00:17:01.606 --> 00:17:03.956 A:middle
Market analysis in
order to make sure

00:17:04.616 --> 00:17:08.226 A:middle
that it would meet the needs
of the potential customers.

00:17:08.666 --> 00:17:13.396 A:middle
And this can be done by looking
at surveys and focus groups

00:17:13.646 --> 00:17:15.836 A:middle
to determine the market needs.

00:17:16.586 --> 00:17:19.646 A:middle
And financial analysis is to
make sure that's it's going

00:17:19.696 --> 00:17:22.466 A:middle
to be profitable
for the company.

00:17:23.346 --> 00:17:27.856 A:middle
The last stage in this
concurrent engineering design

00:17:27.926 --> 00:17:30.186 A:middle
process is the implementation.

00:17:31.096 --> 00:17:35.006 A:middle
It is the process used to
change the final design idea.

00:17:35.006 --> 00:17:39.566 A:middle
So whatever you selected
as your best design,

00:17:40.976 --> 00:17:45.126 A:middle
you turn that into a product if
it's product design or a process

00:17:45.176 --> 00:17:46.566 A:middle
or a system or a structure.

00:17:48.266 --> 00:17:51.216 A:middle
The planning process determines
the most effective method

00:17:51.216 --> 00:17:54.246 A:middle
of moving a product to
the production cycle.

00:17:55.756 --> 00:17:58.916 A:middle
Production is a process used
to transform raw materials

00:17:59.886 --> 00:18:02.916 A:middle
that are needed in order to
create your finished product

00:18:04.336 --> 00:18:07.036 A:middle
or process or structures,
using labor, equipment,

00:18:07.036 --> 00:18:08.426 A:middle
capital, and facilities.

00:18:09.076 --> 00:18:12.306 A:middle
Important part of
implementation is marketing,

00:18:14.096 --> 00:18:18.306 A:middle
anticipating customer needs
and directing the flow of goods

00:18:18.306 --> 00:18:19.936 A:middle
from the producer
to the consumer.

00:18:21.086 --> 00:18:23.416 A:middle
Another important
aspect is finance,

00:18:23.776 --> 00:18:27.826 A:middle
making sure that the
product is feasible

00:18:28.106 --> 00:18:31.426 A:middle
and what the capital
requirements are and the return

00:18:31.426 --> 00:18:35.056 A:middle
of investment to make
sure that it's profitable

00:18:35.736 --> 00:18:38.126 A:middle
within a reasonable
period of time.

00:18:38.896 --> 00:18:42.906 A:middle
Management: logical organization
of people, materials, energy,

00:18:42.906 --> 00:18:47.346 A:middle
equipment in order to
produce the product.

00:18:47.996 --> 00:18:51.776 A:middle
Service, including
insulation, training on how

00:18:51.776 --> 00:18:55.396 A:middle
to use a product's maintenance
and repair if needed.

00:18:56.196 --> 00:19:00.946 A:middle
And very important throughout
this process is documentation.

00:19:01.946 --> 00:19:03.636 A:middle
Here, you formally record

00:19:04.076 --> 00:19:07.896 A:middle
and communicate the
final design solution.

00:19:08.036 --> 00:19:11.046 A:middle
For the design process,

00:19:11.046 --> 00:19:15.176 A:middle
we're going to apply this
to our final project.

00:19:15.756 --> 00:19:20.076 A:middle
As an example web access,
you have this homework 17,

00:19:20.856 --> 00:19:23.496 A:middle
an example of the
engineering design process.

00:19:23.796 --> 00:19:28.466 A:middle
It's called seat for
hunting from a tree.

00:19:29.366 --> 00:19:32.986 A:middle
So in this example,
you are taken

00:19:32.986 --> 00:19:34.766 A:middle
through the different steps

00:19:34.866 --> 00:19:37.546 A:middle
in the traditional
engineering design process.

00:19:38.086 --> 00:19:39.986 A:middle
So here's problem
identification.

00:19:41.216 --> 00:19:43.936 A:middle
That involves naming
the project,

00:19:45.176 --> 00:19:48.466 A:middle
making a brief statement of
the project, the requirements,

00:19:48.996 --> 00:19:51.596 A:middle
the needed information,
all of these things,

00:19:52.026 --> 00:19:55.796 A:middle
market considerations,
surveys, retailer surveys,

00:19:56.176 --> 00:19:57.976 A:middle
for instance, annual
expenditures.

00:19:58.046 --> 00:20:01.736 A:middle
So this example here, I want you
to go through the example in order

00:20:02.146 --> 00:20:06.606 A:middle
to look at the different steps
involved in the design process.

00:20:06.606 --> 00:20:07.976 A:middle
The first part of course is

00:20:08.286 --> 00:20:13.366 A:middle
project identification, and then
second one is preliminary ideas.

00:20:14.676 --> 00:20:17.796 A:middle
These preliminary ideas
are generated using

00:20:18.086 --> 00:20:19.576 A:middle
brainstorming sessions.

00:20:20.376 --> 00:20:23.226 A:middle
And if you notice here,
during the generation

00:20:23.226 --> 00:20:27.926 A:middle
of preliminary ideas,
you have a description

00:20:28.416 --> 00:20:31.436 A:middle
of the ideas, as
well as sketches.

00:20:32.666 --> 00:20:35.556 A:middle
And take note, look at the
list of ideas that are given.

00:20:35.556 --> 00:20:37.866 A:middle
I took this from
an old textbook.

00:20:38.536 --> 00:20:40.636 A:middle
We have a long list of ideas.

00:20:41.236 --> 00:20:44.976 A:middle
Some of them may not be feasible
later on, as we will find out.

00:20:45.016 --> 00:20:47.466 A:middle
But the idea is to
make a long list

00:20:47.686 --> 00:20:51.456 A:middle
of possible design ideas
to solve the problem.

00:20:54.366 --> 00:20:58.926 A:middle
And then, you select the best
ideas out of the long list.

00:20:59.736 --> 00:21:03.796 A:middle
So this is our several
short lists of better ideas.

00:21:04.536 --> 00:21:07.996 A:middle
And from these better
ideas, we do refinement.

00:21:09.396 --> 00:21:13.326 A:middle
So you go into a
little more detail

00:21:13.326 --> 00:21:14.886 A:middle
of each of the design ideas.

00:21:14.886 --> 00:21:17.326 A:middle
So this is refinement.

00:21:17.386 --> 00:21:19.206 A:middle
You have better sketches.

00:21:19.206 --> 00:21:24.116 A:middle
You now start indicating
dimensions, for instance this,

00:21:26.536 --> 00:21:28.646 A:middle
and then followed by analysis.

00:21:29.896 --> 00:21:34.536 A:middle
So in analysis, the idea is
to look at each of the best,

00:21:35.176 --> 00:21:40.376 A:middle
maybe several best, ideas
with respect to criteria

00:21:40.376 --> 00:21:42.916 A:middle
that are important
in determining

00:21:42.996 --> 00:21:44.756 A:middle
which of the designs
is the best.

00:21:46.216 --> 00:21:49.516 A:middle
For instance, you can analyze
them in terms of function,

00:21:50.546 --> 00:21:53.486 A:middle
human engineering, market
and consumer acceptance,

00:21:53.486 --> 00:21:55.886 A:middle
physical description, strength.

00:21:55.886 --> 00:22:00.576 A:middle
So these are just some suggested
general criteria for analysis.

00:22:00.956 --> 00:22:03.756 A:middle
Production procedure, of
course, you want to make sure

00:22:04.456 --> 00:22:08.516 A:middle
that the product's not going to
be very difficult to produce.

00:22:08.886 --> 00:22:10.556 A:middle
And then economic analysis,

00:22:10.556 --> 00:22:12.196 A:middle
making sure that
it's profitable.

00:22:12.866 --> 00:22:18.606 A:middle
Because those analysis criteria,
function, human engineering,

00:22:18.706 --> 00:22:22.596 A:middle
and so on and so forth
will be used in determining

00:22:22.596 --> 00:22:25.396 A:middle
or in making decisions
in the decision stage.

00:22:25.466 --> 00:22:31.696 A:middle
So what you do is you look at
your top three or four designs

00:22:32.586 --> 00:22:37.246 A:middle
and then look at your
analysis factors,

00:22:37.806 --> 00:22:42.086 A:middle
what you think would be
important in deciding which one

00:22:42.086 --> 00:22:43.846 A:middle
of the designs is the best.

00:22:44.556 --> 00:22:45.736 A:middle
So here are the factors.

00:22:45.936 --> 00:22:51.156 A:middle
And then, within your group, you
will assign relative importance

00:22:51.156 --> 00:22:52.976 A:middle
of each of these factors.

00:22:52.976 --> 00:22:56.456 A:middle
For instance, function
is the highest

00:22:57.496 --> 00:22:59.466 A:middle
with the maximum
points of three.

00:22:59.576 --> 00:23:00.896 A:middle
Of course, you want to make sure

00:23:00.896 --> 00:23:04.596 A:middle
that the design will
do what it's supposed

00:23:04.676 --> 00:23:05.956 A:middle
to or designed to do.

00:23:06.126 --> 00:23:09.146 A:middle
And then among the
other factors,

00:23:10.016 --> 00:23:13.176 A:middle
you will also assign maximum
number of points depending

00:23:13.176 --> 00:23:14.696 A:middle
on the relative importance.

00:23:15.686 --> 00:23:18.366 A:middle
So this total here
of 10 is arbitrary.

00:23:18.426 --> 00:23:19.206 A:middle
It could be 20.

00:23:19.206 --> 00:23:20.006 A:middle
It could be 100.

00:23:20.416 --> 00:23:23.936 A:middle
As long as you have number
one, a list of factors

00:23:23.996 --> 00:23:27.806 A:middle
that are important and
number two, decision on which

00:23:28.306 --> 00:23:31.156 A:middle
and how these different
factors are important relative

00:23:31.196 --> 00:23:33.376 A:middle
to each other, their
relative importance.

00:23:33.726 --> 00:23:36.866 A:middle
And then, you're going to look
at each design, design one,

00:23:36.866 --> 00:23:39.096 A:middle
designed to, design
three, as described here,

00:23:39.456 --> 00:23:42.946 A:middle
and assign points based
on the maximum points.

00:23:43.346 --> 00:23:46.236 A:middle
And then you're going to
add all the total points.

00:23:46.236 --> 00:23:51.376 A:middle
And based on this, hopefully,
the best design will come

00:23:51.376 --> 00:23:54.156 A:middle
out with the highest score.

00:23:55.736 --> 00:23:59.126 A:middle
And from that, you're going
to make a conclusion that,

00:23:59.466 --> 00:24:03.066 A:middle
in this case, design
three is the best.

00:24:04.246 --> 00:24:08.196 A:middle
And from that, you're going to
go through the implementation,

00:24:09.836 --> 00:24:13.086 A:middle
which would require you to
create detailed drawings,

00:24:13.086 --> 00:24:14.946 A:middle
working drawings,
and specifications

00:24:14.946 --> 00:24:21.076 A:middle
for how the product is
going to be produced,

00:24:21.726 --> 00:24:24.146 A:middle
including fabrication,
packaging, storage,

00:24:24.286 --> 00:24:28.146 A:middle
shipping of the product.

00:24:28.246 --> 00:24:29.796 A:middle
So this is an example

00:24:29.796 --> 00:24:33.276 A:middle
of the traditional engineering
design process applied

00:24:33.396 --> 00:24:41.406 A:middle
to this problem of designing
a hunting seat from a tree.

00:24:42.426 --> 00:24:45.986 A:middle
So the problem is many hunters
sit on tree limbs while hunting.

00:24:46.086 --> 00:24:48.186 A:middle
This is unsafe and
uncomfortable.

00:24:48.726 --> 00:24:51.156 A:middle
The tree provides a
desirable vantage point

00:24:51.156 --> 00:24:51.996 A:middle
from which to hunt.

00:24:52.586 --> 00:24:54.726 A:middle
A seat is needed to take
advantage of the height

00:24:54.806 --> 00:24:55.796 A:middle
and concealment of trees.

00:24:55.946 --> 00:25:01.326 A:middle
So we're trying to come
up with the best design

00:25:01.326 --> 00:25:02.386 A:middle
for a hunting seat.

00:25:03.396 --> 00:25:07.656 A:middle
So review, study this example.

00:25:08.126 --> 00:25:12.296 A:middle
And in order to do that as
part of homework number 17,

00:25:12.296 --> 00:25:15.236 A:middle
I want you to get together
with your teammates.

00:25:15.266 --> 00:25:22.906 A:middle
So each-- So for the final
project, you're going to have--

00:25:23.156 --> 00:25:26.066 A:middle
So you will be in groups
of two or three members.

00:25:26.866 --> 00:25:30.786 A:middle
You're going to discuss
the hunting seat example

00:25:30.786 --> 00:25:33.376 A:middle
with your group mates.

00:25:34.816 --> 00:25:37.086 A:middle
And there are certain things
I want you to go over,

00:25:38.206 --> 00:25:42.616 A:middle
discuss with your group mates
and set up this prompt here

00:25:43.056 --> 00:25:45.596 A:middle
on this Word document.

00:25:46.666 --> 00:25:47.576 A:middle
Complete this.

00:25:48.356 --> 00:25:51.816 A:middle
And then, you're going to
upload this Word document,

00:25:51.816 --> 00:25:54.876 A:middle
the completed Word
document to web access

00:25:54.876 --> 00:25:57.076 A:middle
as your homework number 17.

00:25:57.706 --> 00:26:01.306 A:middle
Although this is going to
be discussed as a group,

00:26:01.706 --> 00:26:03.796 A:middle
each individual group
member needs

00:26:03.856 --> 00:26:06.766 A:middle
to upload their completed
comment sheet.

00:26:08.076 --> 00:26:12.986 A:middle
So hopefully that will give you
an idea on how to go about going

00:26:12.986 --> 00:26:14.236 A:middle
through the design process

00:26:14.886 --> 00:26:18.506 A:middle
when you're given your
final design project.