Choosing An Optimal Design

Read the Daily Message and record notes of
important points and deliverables. (5 min)
Open and repin Daily Message Notes
• Add today’s date and subject of the message
(Optimal Designs) at the top of the note.
• Add (Copy/Paste) summary of deliverables
and/or important information under heading.
NSEI 6.1 WARM-UP

NSEI 6: REVIEWING DESIGN FEEDBACK
Interns actively read the feedback letter and discuss as a group in order to set goals for the
criteria and prepare for final iterations. (15 min)
To understand whether the
feedback suggests that your
results are strong, moderate,
or weak, look for phrases that
state if something is good, just
okay, or not great and needs a
lot of improvement. These
phrases are clues for how to
make changes to your next
iterations.
•Each Design Team has submitted a
design to Ken Tapaha and you will use it
to demonstrate how to interpret his
feedback.
•The project director has given
suggestions, but not answers, about
how to improve your designs. Look for
whether your design strongly,
moderately, or weakly addressed each
criterion.

I highlighted parts of
this section in green
because the language
suggests that
you strongly addressed
the criterion of
Minimizing Drug
Resistance.

I have highlighted in
yellow the portions of
this section that state
you have moderately
addressed the criterion
of Patient Side Effects.

I have highlighted in
pink the portions of
this section that state
you have weakly
addressed the criterion
of Treatment Cost. Your
design is too
expensive.

You will use this table
to help them
summarize the
feedback they received
from Ken Tapaha.
Connect feedback from
your example letter to
the criteria in the table.

Locate the design they
submitted and to
complete the first row
on the Design
Feedback Summary
sheet with their test
results.

As you read your feedback
letters, interns will record
notes in the second row of
the table on the Design
Feedback Summary sheet.
If you are providing printed
feedback letters, let interns
know that they can annotate
the printed letters and then
transfer notes to their
Design Feedback Summary
sheets.

Color-code your entries on
the Summary sheet, using
the highlighters to indicate
whether the feedback
suggested their design
strongly, moderately,
or weakly addressed the
criteria. In this example, it is
clear that the design
strongly addressed the
criterion of Minimizing Drug
Resistance, but needs work
in the other criteria.

Who received
feedback that
indicated their
design strongly
addressed the
criterion for
Minimize Drug
Resistance to
share their
values.

Who received
feedback that
indicated their
design
moderately
addressed the
criterion for
Minimize Drug
Resistance to
share their
values.

You will have
some time today
for more iterative
testing to improve
upon their
designs.

It is very hard to
address all three
criteria equally well,
but it’s important to
try to improve your
designs as much
as possible for
each criterion.
Sometimes, to
strongly address
one criterion, you
have to moderately
address another.
These are trade-
offs, and you
probably
experience these
trade-off decisions
in your daily lives.

A trade-off happens in a
situation where a design
has good results in one
criterion but not in
another. Often, you will
find that you need to
prioritize one criterion
over another when
considering changes to
your designs.

Remember, the point of
iterative testing is to
gather information that will
help inform and improve
your next test. Based on
the ranges from Ken’s
feedback, you should set
a target value in the third
row of the Design
Feedback Summary. Then
describe a strategy for
achieving those targets in
the last row. For example,
to reduce cost, I can use
less of Drug A and more
of Drug C.
To reduce cost, I can
use less of Drug A
and more of Drug C.
Complete a redesign strategy for each criterion, based on
these ranges and on the analysis of your feedback letter.

NSEI 6: LEARNING ABOUT OPTIMAL DESIGNS
It was nearly impossible
to strongly address all
three criteria equally, so
interns had to make
choices, prioritize each
of the criteria, and
accept trade-offs.
Through this process,
they should have a
better idea of what their
optimal design might
look like.

NSEI 6: LEARNING ABOUT OPTIMAL DESIGNS
Video Engineering Tip:
Optimal Designs.
•In order to identify an optimal design you
must decide on a priority.
•Since each project has several criteria,
there will be trade-offs among them,
especially when you plan designs that
target or emphasize one priority over the
other criteria.
•Each engineer’s optimal design may be
different from another based on the priority
they set and the trade-offs they accept.

Choosing An Optimal Design

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