Analysis of U-scan machines Group 4 Olivia Tran Jamie Tran Josh Wortman Calvin Hsu Oscar Guerrero...
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Transcript of Analysis of U-scan machines Group 4 Olivia Tran Jamie Tran Josh Wortman Calvin Hsu Oscar Guerrero...
![Page 1: Analysis of U-scan machines Group 4 Olivia Tran Jamie Tran Josh Wortman Calvin Hsu Oscar Guerrero Shawn Flynn Andrew Wong Todd Espiritu Santo.](https://reader035.fdocuments.in/reader035/viewer/2022062517/56649eb35503460f94bb9bed/html5/thumbnails/1.jpg)
Analysis of U-scan Analysis of U-scan machinesmachines
Group 4Group 4Olivia Tran Olivia Tran Jamie TranJamie TranJosh Wortman Josh Wortman Calvin HsuCalvin HsuOscar Guerrero Oscar Guerrero Shawn FlynnShawn FlynnAndrew Wong Andrew Wong Todd Espiritu SantoTodd Espiritu Santo
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The U-Scan ExpressThe U-Scan Express
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The Facts Behind the MachineThe Facts Behind the Machine
Started in the early 1990’sStarted in the early 1990’s
Designed to save on operating costsDesigned to save on operating costs
Available in several national store chains Available in several national store chains (Ralphs, Home Depot, Wal-Mart, etc…)(Ralphs, Home Depot, Wal-Mart, etc…)
Multiple modelsMultiple models
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FunctionalityFunctionality
Place items on the holderPlace items on the holder
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FunctionalityFunctionality
Initiate user interface softwareInitiate user interface software Select languageSelect language Scan Ralphs Club CardScan Ralphs Club Card Scan items inScan items in
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FunctionalityFunctionality
Scan in the items and place into bagsScan in the items and place into bags
Scanning device User Interface
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FunctionalityFunctionality
Checking out and payingChecking out and paying
Payment device User Interface
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Analysis: User InterfaceAnalysis: User Interface
ProsPros Gives feedback for Gives feedback for
most operationsmost operations Monitor position Monitor position Button labelsButton labels Bi-ModalBi-Modal Back buttonsBack buttons
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Analysis: User InterfaceAnalysis: User Interface
ConsCons Grouping of buttons Grouping of buttons Absence of feedback Absence of feedback
on some operationson some operations
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Analysis: User InterfaceAnalysis: User Interface
ConsCons Grouping of buttons Grouping of buttons Absence of feedback Absence of feedback
on some operationson some operations
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Analysis: Scanning and BaggingAnalysis: Scanning and Bagging
ProsPros Beep indicationsBeep indications Walk through stepsWalk through steps Visual FeedbackVisual Feedback
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Analysis: Scanning and BaggingAnalysis: Scanning and Bagging
ConsCons Poor bag anchorsPoor bag anchors No indication of where No indication of where
to place extra bagsto place extra bags Weighing foods and Weighing foods and
your handyour hand
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Analysis: Scanning and BaggingAnalysis: Scanning and Bagging
ConsCons Poor bag anchorsPoor bag anchors No indication of where No indication of where
to place extra bagsto place extra bags Weighing foods and Weighing foods and
your handyour hand
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Analysis: Payment and CheckoutAnalysis: Payment and Checkout
ProsPros CouponsCoupons Variety of Payment Variety of Payment
methodsmethods Combine Payment Combine Payment
methodsmethods
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Analysis: Payment and CheckoutAnalysis: Payment and Checkout
ConsCons Where is the Receipt?Where is the Receipt? Double promptDouble prompt Can’t use bills over Can’t use bills over
$20$20
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““Breaking” the MachineBreaking” the Machine
Subject: New user Subject: New user ToddTodd Fairly easy, no errors Fairly easy, no errors
encounteredencountered
Subject: Veteran user Subject: Veteran user OscarOscar Handles complex Handles complex
errors wellerrors well
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Usability AnalysisUsability Analysis
QuestionnaireQuestionnaire Reasons to useReasons to use Ease of useEase of use
Taken during Taken during weekends at busy weekends at busy timestimes
45 samples45 samples
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• User Statistics
Usability AnalysisUsability Analysis
ExperiencedExperienced NoviceNovice
NN 3737 88
Mean AgeMean Age 2929 3030
Mean Items Mean Items PurchasedPurchased 6.46.4 4.74.7
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Credit Card50%
Check3%
Bank Card22%
Cash25%
Credit Card,
(6)
Cash(2)
• Method of Payment
Experienced Novice
Usability AnalysisUsability Analysis
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Yes35%
No3%
Sort of62%
Sort of 74%(6)
Yes13%(1)
No, 13%(1)
• Ease of Use
Experienced Novice
UsabilityUsability AnalysisAnalysis
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• User Experience
Usability AnalysisUsability Analysis
Used toUsed to save timesave time 92%92% 63%63%
Used toUsed to save time, & save time, & feelfeel they saved timethey saved time
91%91% 50%50%
Did not use to save Did not use to save time but feel they time but feel they saved anywayssaved anyways
67%67% 33%33%
Experienced Novice
•
•
•
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InstructionsInstructions
ClearClear 97%97% 43%43%
Not ClearNot Clear 0%0% 29%29%
Did Not ListenDid Not Listen 3%3% 29%29%
Opinion of Computer VoiceOpinion of Computer Voice
PleasantPleasant 36%36% 14%14%
AnnoyingAnnoying 22%22% 29%29%
No OpinionNo Opinion 42%42% 57%57%
Experienced Novice
Usability AnalysisUsability Analysis
• User Experience
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Experienced Novice
Usability AnalysisUsability Analysis
• User Experience: Overall Opinion
Rated Experience of…Rated Experience of…
Checking the itemsChecking the items 2.732.73 2.382.38
Interacting withInteracting with the touch screenthe touch screen 2.952.95 2.382.38
Completing paymentCompleting payment 2.842.84 2.252.25
Using the following rating scale, please circle your rating for the following questions:
1= Confusing & Problematic2= Some problem or difficulty3= Easy, no problem
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DESIGNER USER
SYSTEM
DESIGN MODEL USER’S MODEL
SYSTEM IMAGE
P.O.E.T., p. 190
Does the USCAN employ a Does the USCAN employ a user centered designuser centered design????
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Seven Principles for Transforming Difficult Tasks into Seven Principles for Transforming Difficult Tasks into Simple Ones:Simple Ones:
1.1. Use knowledge in the world and knowledge in the head.Use knowledge in the world and knowledge in the head.
2.2. Simplify the structure of tasksSimplify the structure of tasks
3.3. Make things visibleMake things visible
4.4. Get the mappings rightGet the mappings right
5.5. Exploit the power of constraintsExploit the power of constraints
6.6. Design for errorDesign for error
7.7. When all else fails, standardizeWhen all else fails, standardize
Does the USCAN hold to Norman’s seven principles??Does the USCAN hold to Norman’s seven principles??
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U-Scan vs. CashierU-Scan vs. Cashier
U-ScanU-Scan Privacy Privacy Feel in control Feel in control Go at your own paceGo at your own pace Item list with pricesItem list with prices Saves timeSaves time Cost effectiveCost effective
CashierCashier ComfortComfort Bagging handled for Bagging handled for
you (no squished you (no squished bread)bread)
Price checksPrice checks Quick error fixesQuick error fixes
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RecommendationsRecommendations
User interface:User interface: Group buttons by Group buttons by
functionfunction
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RecommendationsRecommendations
User interface:User interface: Add an animation for Add an animation for
processingprocessing
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RecommendationsRecommendations
Scanning and Scanning and Bagging:Bagging: Anchor the bag holderAnchor the bag holder Large sign to show Large sign to show
where to put overflow where to put overflow bagsbags
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RecommendationsRecommendations
Payment:Payment: Receipt should be Receipt should be
moved closer to the moved closer to the monitor monitor
Get rid of the double Get rid of the double promptprompt
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ConclusionConclusion
Overall rating 9/10Overall rating 9/10
Special thanks to manager manSpecial thanks to manager man
Josh had a traumatic employee incidentJosh had a traumatic employee incident
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