Estimationneed baselines
order of magnitude or range of values
117.152 seconds
units
show your work!
does this seem right?
half a pound
Estimation GameHow many people on bicycles would it take to comfortably toast bread with a human powered toaster?
1000W/100W
10 people
Estimation GameMechanical Bull in House?
power requirement for mechanical bull?
standard voltage in house?
standard circuit breaker current?
240V x 30A = 7200W 120V x 30A = 3600W
most are 7500W!
0
1.5
3
4.5
6
no yes N/A
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
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1800
Estimation GameTooth Tunes Battery weight?
how often should you change toothbrushes? how often and long should you brush
how much power does it require?
energy density of alkaline battery?
~ 20-40g (1-2 AA batteries)
81 AA?
22 AA?
18 AA?
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
11000
Estimation GameHot dog in the Easy Bake?
Q=mCp∆T
50-200 g and 20-60 deg
Power of Easy Bake
1-10 min without losses
8 hours?
2 hours?
Sketch Model Feedback
50+ Reviewersread the feedback notesnext step: make two high level prototypes as a team Nothing is more dangerous than an idea, when it's the only one we have. - Emile Chartier
5 - agree strongly agree, 0 - strongly disagree
“this model is taking the idea in a good direction”“this sketch model was well constructed”
Grades!sketch model grade - 5 points(Based on average judges scores of your two models)sketch model lab participation grade - 5 points (Based on peer participation scores)
written model feedback returned Thursdaypeer review text returned Thursday anonymous w/ only avg team scoreinstructors will provide some general advice in lab
0
250
500
750
1000
ambe
r
periw
inle
cyan
mag
enta
gree
n
char
treus
e
pew
eter
purp
le
blue
oran
ge red
cora
l
onyx
yello
w
Budget! $1000 (with $250 in gopher gold)
average to date = $225for 6 models
only 3 more prototypes left
average sketch model scorefrom reviewers
2
3
4
5
2 3 4 5
R² = 0.6525
this
ske
tch
mod
el w
as w
ell c
onst
ruct
ed
this prototype is taking the idea in a good direction
average sketch model scorefrom reviewers
2.8
3
3.2
3.4
3.6
3.8
4
4.2
3.0 3.2 3.4 3.6 3.8 4.0this
ske
tch
mod
el w
as w
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onst
ruct
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this prototype is taking the idea in a good direction
average sketch model scorefrom reviewers
2.5
3
3.5
4
4.5
5
20.0 26.0 32.0 38.0 44.0 50.0this
ske
tch
mod
el w
as w
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onst
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average number of hours spent on models
1
2
3
4
5
0 10 20 30 40 50 60 70 80
this
ske
tch
mod
el w
as w
ell c
onst
ruct
ed
average number of hours spent on each model combined
36 hr/model combined
average sketch model scorefrom reviewers
top sketch models“this sketch model was well constructed”
0
1
2
3
4
5
connernia
sam amanda
colinadam
meganfelix
jimmyming
gabidan
kylevic
connorluke
charethan
peer reviewPlease score this person's level of contribution during this round of prototyping. (include yourself)
Your comments are extremely important for adjusting team member behavior, so please spend some time and be constructive. Making thoughtful, honest comments is a very important contribution to your team’s performance.
“keep up the good work”
“5 5 5 5 5”“lake wobegon effect”
Even if you did not work directly with this person, please still provide feedback based on your observations. 1 = did not contribute at all or was detrimental to the project, 5 = contributed exceptionally and beyond expectations
“everything is awesome”
-1
0
1
2
3
delta between self score and partner scores
rated self higher than partners rated you
rated yourself lower than your partners rated you
peer review
“illusory superiority”
Sketch Model Feedback
50+ Reviewersread the feedback notesnext step: make two high level prototypes as a team Nothing is more dangerous than an idea, when it's the only one we have. - Emile Chartier
5 - agree strongly agree, 0 - strongly disagree
“this model is taking the idea in a good direction”
Power of AestheticsAesthetically pleasing objects enable you to work better. Products and systems that make you feel good are easier to deal with and produce more harmonious results - Norman
Which do you prefer?Norio Ohga (Sony Chairman) - “At Sony, we assume that all products of our competitors have basically the same technology, price, performance, and features. Design is the only thing that differentiates one product from another in the marketplace”
People will buy what looks better as long as they believe it meets the basic functional requirements.
People will buy what looks better as long as they believe it meets the basic functional requirements. and if it looks really good, it doesn’t even need to “function”
aesthetics are important in product design
self image
purely aesthetic products
first impressions
Hasbro distributers
Product Aesthetic The typical person uses a toaster at most 15 minutes per day. The remaining 1,425 minutes of the day the toaster is on display. In other words, 1 percent of the toaster’s time is devoted to utility, while 99 percent is devoted to significance. Why shouldn’t it be beautiful? - Pink
Before you leave the house, look in the mirror and remove one accessory. - coco chanel
More is more and less is a bore -iris apfel
less is more more is more
Color Brandingan
alog
ous
com
plem
enta
ry
Color in Toys
*Gender Assignment based on findings of Blakemore and Centers in “Characteristics of Boys’ and Girls’ Toys”, 2005
Pink vs. BlueIs there science behind this?
Gender bias in the visual system (P-Cell Pathway)
Red-Green Distinction and preference for red colors
An Evolution Perspective of Sex-Typed Toy Preferences: Pink, Blue, and the Brain, G. Alexander 2003
Multi-Sensory Design
All products are multimodal
Controlling all the modes
Product Coherence
Synesthesia
PDES 3715: Design and Food
Next MilestoneDesign Consulting Monday April 4th in Rapson from 6-(8)pm
As a team, making a two high level prototypes
Only 2 weeks! Start refining these two ideas to make them playable.
Make sure you understand the safety issues and manufacturing
This next one is a team grade, the entire team gets the same grade.
Wednesday’s class is for planning in Bruininks 114
Gopher cards are for Digifab only (not printing)
Before Wednesdaytype up notes from play test and the review and email out
carefully read the feedback for both concepts on your team (someone should consolidate the feedback)
think of a plan for moving forward
document it in your notebook
meet in Bruininks 114
Extra play testing*Science Museum
only bring the prototypes that you are continuing with.
You may be able to play test on Saturdays March 26, April 23, or April 30 at the Minnesota Science Museum from noon-4. To do this you must contact Keith Braafladt at [email protected] one week in advance and be able to arrive at 11 to set up.
*not optional for cyan and pewter
LogisticsFinal PLAYsentations are May 4th, 6pm, Coffman Theatre
m t w t f s s
today plan day here
lab
build build lab
crit