© IDC, IIT Bombay 1 Game. © IDC, IIT Bombay Clues 1.Is equipped with an internal combustion engine 2.Is available in yellow, black, and yellow and black.

© IDC, IIT Bombay1

Game

© IDC, IIT Bombay

Clues

1. Is equipped with an internal combustion engine2. Is available in yellow, black, and yellow and black combo3. Has three wheels4. Has a parking brake and a foot brake5. Has a 3-speed forward and a 3-speed reverse gear box 6. Levels uneven surfaces nicely and quickly7. Blast weights can be added to level different types of

surfaces

2

© IDC, IIT Bombay3

Answer

© IDC, IIT Bombay

Clues

1. Is equipped with an internal combustion engine2. Is available in yellow, black, and yellow and black combo3. Has three wheels4. Has a parking brake and a foot brake5. Has a 3-speed forward and 3-speed reverse gear box6. Levels uneven surfaces nicely and quickly7. Blast weights can be added to level different types of

surfaces

4

User Experience Goals

© IDC, IIT Bombay6

Useful? Usable? Desirable?

Desirable– Empowers, engages, entertains the user– Meets experience goals, touches life goals– Satisfies wants, desires

Usable– Works for the user: is learnable, error-free, easy, fast…– Meets end goals, touches experience goals– Satisfies latent needs

Useful– Provides a utility / function: enables, informs,

educates…– Solves problems, works reliably, is affordable,

available…– Satisfies expressed needs

© IDC, IIT Bombay7

Primary Product Goals

Strategy– Pricing, branding,

positioning, partners– ‘Reach’ability

– Proposed by a multi-disciplinary team

– Approved by business stakeholders

77

PrimaryProductGoals

BusinessGoals

UserProblems

UserEnvironment

MarketConditions

User Goals (end, experience,

life)

© IDC, IIT Bombay8

Primary Product Goals

Strategy Scope

– Features, functions, facilities, content

– Deliverables of the project

– Proposed by a multi-disciplinary team

– Approved by business stakeholders

8

PrimaryProductGoals

BusinessGoals

UserProblems

UserEnvironment

MarketConditions


life)

Useful

© IDC, IIT Bombay9


Primary product goals indicate user tasks

Set experience goals for each task– Don’t let features

creep in

Useful

UsableDesirable9

User Experience

Goals

User Tasks

PrimaryProductGoals

BusinessGoals

UserProblems

UserEnvironment

MarketConditions


life)

© IDC, IIT Bombay10


User experience goals are expressed as– User performance– User preference

And as– Qualitative goals– Quantitative goals

User Experience

Goals

User Tasks

PrimaryProductGoals

BusinessGoals

UserProblems

UserEnvironment

MarketConditions


life)

Useful

UsableDesirable


Qualitative User Experience Goals

~ “Tourists new to city should be able to look up information”

~ “Patient’s relatives should feel confident and have less anxiety”

~ “People should be able to type in their mother tongue”

~ “It should be easier to type than write”~ “Children should explore the toy on their own”~ “Policemen should be able to work in a high-interrupt,

distracting environment”~ “People should enjoy waking up in the morning”~ “A group of people should be able to work together”~ “Users should find operations consistent throughout

the product” Preference or performance?


Quantitative User Experience Goals

~ “Improve speed of use of the ATM by 25%”~ “A regular commuter should be able to make up his

travel plan in 30 seconds after reaching the bus stop”~ “User should be able to withdraw cash in 45 seconds”~ “Parents should be confident that the toy will be safe”~ “The grandmother should be able to play the movie

she likes”~ “95% patients should be able to report a symptom on

their first attempt”~ “Reduce typing errors by 30%”~ “A plant operator should learn to use the new console

in 2 days.”~ “Reduce support call time by 10%”~ “Reduce wastage to 1 part per million due to operator

error” Preference or performance? Relative or absolute goals?



You Can’t Meet All Goals

Life critical systems– Reliability, error free use, long training and practice,

work under pressure~ Railway signals, ATC, medical devices, water supply,

driving a car



Life critical systems Industrial and commercial uses

– Speed of use, minimal training, operator fatigue and burnout~ Banks, railway reservation, inventory system, retail,

call centre applications



Life critical systems Industrial and commercial uses Home, office, public places

– Some tasks with zero learning, encourage self learning and exploration, support wide range of users (N/AB/CP), subjective satisfaction~ Office products, ATMs, cell phones, entertainment

systems



Life critical systems Industrial and commercial uses Home, office, public places Exploratory and creative

– Ease of use, some training, encourage self learning and exploration~ Architecture, graphic design, product design, audio

studio, management information systems



Life critical systems Industrial and commercial uses Home, office, public places Exploratory and creative Cooperative work

– Chat, mailing lists, distance learning, workflow– Some tasks with zero learning, ease of use, encourage

self learning and exploration, support wide range of users (N/AB/CP), subjective satisfaction



Life critical systems Industrial and commercial uses Home, office, public places Exploratory and creative Cooperative work Micro interface

– Demonstrate new concept, attract early adaptors, zero learnability, ease of use~ Hardware, Indian language text input


Goal Driven Design

Goals are drawn from a deep understanding of users– Goals drive design– Help speed up design process– Make design activity tangible– Help evaluate design

Set goals before design!!!– Design is evaluated against goals– Makes the design activity tangible


Goal Setting Task 1

Set some user experience goals for a chosen product

What information do you need before setting goals?

© IDC, IIT Bombay

Usability Goals Setting Tool – Overview

22

© IDC, IIT Bombay

23

PR

LC

© IDC, IIT Bombay

24

© IDC, IIT Bombay

Usability Goals Setting Tool

25

Learnability

Findability: options / data / information should be visible / easy to findUser should take less time to learn: (e.g. in < 10 minutes, in < 2 hours practice, in < 2nd attempt)Users should be able to learn on their own

Product should be internally consistentProduct should be consistent with other products, older methods / past habits of usersProduct should be consistent with earlier version

User should remember / retain critical, but infrequent tasks

Speed of useUser must be able to do the primary task / the most frequent tasks quickly, easily, at all timesUser should be able to navigate quickly and easilyProduct should not load user’s memory / product should not put cognitive load on userFlexibility: User should control the sequence of tasksUser should be able to complete frequent / critical tasks in specific time / no. of steps / in less effortsProduct should be personalised for the user automatically

Product should be localised for specific market segments

User should be able to customise the product for himself

Ease of use

Interface should clearly communicate the conceptual model

Intuitiveness: User should be able to predict the next step / task

No entry barrier: user must be able to complete critical first tasks

Product should require no unnecessary tasks

Product should automate routine tasks / minimise user task load

Product should be always on, always accessible

Ease of CommunicationInformation architecture: Information should be well aggregated, categorised, presented Communication should be clear / user should easily understand text, visuals

Error-free use

Product should give good feedback / display its current status

Product should not induce errors

Product should tolerate user’s errors / forgiving interface / should prevent errors

Product should help user recover from errors / help users troubleshoot problems

Subjective Satisfaction

User should feel in control of the product / behavioural appealUser should feel emotionally engaged with product / brand / product should be fun / reflective appealUser should find the product aesthetically appealing / product should have a visceral appeal

26

Categories of User Experience Goals

1. Learnability2. Speed of use3. Ease of use4. Ease of communication5. Error-free use6. Subjective satisfaction

27




1. Learnability

Novice users – First-time usability of the product

~ “Tourists should be able to find out the bus they need to take.”

~ “First year students should be able to register without help.”

~ “A literate user should be able to type his name in the first attempt”

Advanced beginners / competent performers– Ease to learn more features, improve conceptual

models~ “Regular customers should learn to use the one-click

feature.”~ “Regular customers should be able to order

vegetables on their cell phones.”


1. Learnability…

First version– All users start out being novices– Have no knowledge of the product

~ “Recognize terms used in the interface” Subsequent versions

– Users will transfer existing knowledge– Users will have to learn the differences

~ “Be 100% backward compatible with these tasks…”~ “Users should notice the new wizard.”

30

1. Learnability Parameters

Findability Users should need less time to learn Users should learn on their own Internally consistent Consistent with other products Consistent with earlier version Users should retain critical, but infrequent tasks



Findability– User should be able to find options / data / information

~ Align to grid in PowerPoint– Stuff should be visible – inverted pyramid

~ Dashboards



Findability Users should need less time to learn

~ < 10 minutes demo ~ < 2nd attempt~ < 2 hours practice



Findability Users should need less time to learn Users should learn on their own

– Things should be obvious– Step-by-step guidance

~ Find out the next bus as the bus stop



Findability Users should need less time to learn Users should learn on their own Product should be internally consistent

~ E.g. Control + D in Excel



Findability Users should need less time to learn Users should learn on their own Internally consistent Product should be consistent with other products

– With older methods / habits– Ctrl + C =– Ctrl + S = – Ctrl + Z =



Findability Users should need less time to learn Users should learn on their own Internally consistent Consistent with other products Product should be consistent with earlier version

~ Netscape Navigator~ Animator Pro to Animator for Windows~ Office 2003 to 2007



Findability Users should need less time to learn Users should learn on their own Internally consistent Consistent with other products Consistent with earlier version Users should retain critical, but infrequent tasks

– Over hours, days, months, years ~ IT returns

– Most advanced beginners are intermittent users~ Installing network printer, ATM for my dad

– Parts of the interface that are used intermittently~ Backup, restore

38




2. Speed of Use

Time taken~ “It should take a farmer less than five minutes to

identify a transporter.” Number of steps

~ “A novice user should be able to deposit cash at the ATM in 3 steps.”

~ “Regular commuters should be able to tell time to the next bus without clicking.”

Same as ease of use?

40

2. Speed of Use Parameters

Primary / frequent tasks should be quick and easy Fast and easy navigation Product should minimally load user’s memory Flexibility Task completion time / steps Personalized for the user Localized for the market segment User should be able to customise the product



Primary / frequent tasks should be – Available at all times

~ Save work~ Change volume / channel

– Quick and easy ~ One click ordering



Primary / frequent tasks should be quick and easy Fast and easy navigation



Primary / frequent tasks should be quick and easy Fast and easy navigation Product should minimally load user’s memory

– Put minimal cognitive load on user– Reduce amount of flicker



Primary / frequent tasks should be quick and easy Fast and easy navigation Product should minimally load user’s memory Flexibility

– User should have control of sequence of tasks



Primary / frequent tasks should be quick and easy Fast and easy navigation Product should minimally load user’s memory Flexibility Task completion time / steps

– User should be able to complete a task in specific time (10 minutes) / steps (4 steps)



Primary / frequent tasks should be quick and easy Fast and easy navigation Product should minimally load user’s memory Flexibility Task completion time / steps Product should be personalized for the user

– Automatically~ Gmail addresses~ Keeping track of purchases~ Remember volume setting of each channel



Primary / frequent tasks should be quick and easy Fast and easy navigation Product should minimally load user’s memory Flexibility Task completion time / steps Product should be personalized for the user Product should be localized for the market segment

~ tripadvisor.com, tripadvisor.in



Primary / frequent tasks should be quick and easy Fast and easy navigation Product should minimally load user’s memory Flexibility Task completion time / steps Product should be personalized for the user Product should be localized for the market segment User should be able to customise the product

– Beyond look and feel ~ Organise~ Define styles~ Create shortcuts~ Customise dashboards

49




3. Ease of Use

Define tasks a given user must be able to do~ “All advanced beginners should be able to find and

replace text.” Define a preferred method of doing things

~ “All competent performers should be able to do a find operation on multiple documents with one command rather than opening each file separately.”

51

3. Ease of Use Parameters

Interface should communicate the conceptual model Intuitiveness No entry barrier No unnecessary tasks Automate routine tasks / minimise user task load Product is always on, always accessible



Interface should communicate the conceptual model~ Keylekh, Saral, Swarachkra, Disha



Interface should communicate the conceptual model Intuitiveness

– User should be able to predict the next step / task~ Wizards, iPad, Gmail, Nokia phones



Interface should communicate the conceptual model Intuitiveness No entry barrier

– User must be able to complete critical tasks in first attempt~ Tata Sky~ Touch screens on ATMs~ iTunes for novices~ SBI net-banking application form~ ATM doorlock



Interface should communicate the conceptual model Intuitiveness No entry barrier No unnecessary tasks

~ Cash section – searching for the bill



Interface should communicate the conceptual model Intuitiveness No entry barrier No unnecessary tasks Automate routine tasks / minimise user task load

~ Remember settings from last encounter~ Remember last 3 trips on Jet Airways~ Auto-select frequent choices~ Auto-correct frequent errors



Interface should communicate the conceptual model Intuitiveness No entry barrier No unnecessary tasks Automate routine tasks / minimise user task load Product is always on, always accessible

~ Mobile phones~ छो�टा� credit~ Low booting time PCs~ Synchronised calendar on multiple media

~ Extra battery for cell phones (like reserve in two-wheelers)

58



© IDC, IIT Bombay

Information architecture – Information should be well aggregated, categorized,

presented~ Find information on IITB website~ Office 2007 went from menus to ribbons and changed

IA– Where is “Snap objects to grid” setting in PowerPoint?

Communication should be clear – User should easily understand text, labels, headings,

visuals

59

4. Ease of Communication Parameters

© IDC, IIT Bombay

Information architecture – Information should be well aggregated, categorized,

presented~ Find information on IITB website~ Office 2007 went from menus to ribbons and changed

IA– Where is “Snap objects to grid” setting in PowerPoint?

Communication should be clear – User should easily understand text, labels, headings,

visuals

60

4. Ease of Communication Parameters

61




5. Error-free Use

Error – An action of the user that does not accomplish the

desired goal Severity of Errors

– The more difficult it is to recover from the error, more sever it is

– Catastrophic, major, minor Type of errors

– Slips and mistakes– Frequent and one-time errors

Error rate of a product– # of errors made while performing benchmark tasks– % of users who make an error while doing a task


5. Error-free Use

Limits for error rate of the product ~ 90% users can withdraw cash on first attempt

Ability of users to recognize errors~ If the amount is beyond limit, users should recognise

this before the transaction Limits for severity of the errors

~ Users cannot enter an amount greater than what they can withdraw

~ The user should realise that a beyond-limit withdrawal leads to a fine

Ability of users to recover from errors~ If the amount is beyond limit, users should be able to

reduce the amount without logging in again

64

5 Error-free Use Parameters

Product should give good feedback Product should not induce errors Product should tolerate user’s errors Product should help user recover from errors



Product should give good feedback ~ Display current status~ Timely responses

Product should not induce errors~ Flash Action Script~ Jet Airways




Product should tolerate user’s errors– Forgiving interface

~ Accept any date format


66






~ Accept any date format Product should help user recover from errors

– Troubleshoot problems






~ Accept any date format Product should help user recover from errors

– Troubleshoot problems

69




6. Subjective Satisfaction

Emotional needs, wants and desires– Life goals and experience goals of users– Influences the desirability

Important for non-work products ~ Entertainment products~ Games~ Fiction

Important for niche markets~ Hasselblad cameras for photographers~ Apple computers for designers~ Manual blood pressure meter for doctors

71

6. Subjective Satisfaction Parameters

User should feel emotionally engaged / reflective appeal User should find the product aesthetically appealing User should feel in control / behavioural appeal



User should feel emotionally engaged– Reflective appeal, sense of identification, pride– Enjoyment, fun– Brand appeal, trust– Creativity

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– Visceral appeal – Beauty

74

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User should feel emotionally engaged User should find the product aesthetically appealing User should feel in control

– Behavioural appeal

81



82

Review Weights – Goal Setting Task 2

USP (5)– Top 3 user experience goals

Very Important (4)– Top 6 user experience goals

Important (3)– Top 10 user experience goals

Usual Relevance (2)– Vanilla, hygiene factor

Somewhat relevant (1) – Ignore in a pinch

Irrelevant (0)

© IDC, IIT Bombay

UGT Formative Evaluation

– 11 IDC student projects, 4 HCI professional proejcts UGT was continuously modified

– During and after each session – Goal parameters were added, re-worded, split, merged

or regrouped – Expressive enough to suit individual products– General enough to apply to a wide range of products

Outcome– Goal parameters went up from 20 to 30– Retention merged with Learnability– Ease of communication added– Examples, goal setting guidelines, evaluation ideas were

articulated83

© IDC, IIT Bombay

UGT Summative Evaluation

First summative evaluation– 34 HCI professionals (CEP participants)– Asked to set goals for an industrial project

Second summative evaluation– 15 HCI professionals during user experience tutorials

– Post-activity questionnaire

84

© IDC, IIT Bombay

85

Kolmogorov-Smirnov test

© IDC, IIT Bombay

Analysis of UGT

Weights and scores from 65 industry projects Coverage

– Extent to which suggested goal parameters suffice – UGT sufficient for setting goals in 59 / 65 projects– 6 / 65 projects needed additional goals

Relevance – How many goal parameters could be removed from UGT

without hampering coverage significantly

86

Speed and flexibilityUser should be able to do multiple tasks at the same timeForm and looks Product should have a sporty look / reflect current trendsAccessibility Information should be visible in extreme conditions (desert, bright light, total darkness).PortabilityProduct should be able to connect to any other product (portability) Product should run on many other hardware (portability)Be compatible with old browsers, computersSafety and securityThe produce should be safe and secure - user should not get injuryAccess to tasks should be controlled


0 1 2 3 4 5 Mean

1 Findability 0 0 3 13 30 19 4.00

23 Communication should be clear 0 0 5 14 29 17 3.89

22 Information architecture 0 1 3 24 18 19 3.78

24 Feedback 0 0 10 21 22 12 3.55

9 Navigate quickly and easily 1 1 12 11 30 10 3.51

8 Do primary task quickly 3 3 5 14 28 12 3.49

16 Communicate the conceptual model 0 5 8 18 21 13 3.45

28 Behavioural appeal 1 2 9 28 19 6 3.23

12 Complete tasks in time / steps 4 1 13 20 15 12 3.18

17 Intuitiveness 1 4 11 25 18 6 3.12

2 Take less time to learn 1 5 12 24 17 6 3.06

4 Internally consistent 1 4 17 19 17 7 3.05

10 Not load user’s memory 1 2 23 14 17 8 3.05

25 Not induce errors 3 0 17 24 14 7 3.03

27 Help user recover from errors 2 5 19 18 16 5 2.86

3 Users learn on their own 5 6 15 14 19 6 2.83

18 No entry barrier 7 6 10 19 16 7 2.80

19 Require no unnecessary tasks 3 2 19 26 12 3 2.78

30 Aesthetically appealing 2 6 18 21 14 4 2.78

5 Consistent with other products 5 5 19 18 8 10 2.75

21 Always on, accessible 10 6 16 10 10 13 2.66

26 Forgiving interface 3 6 20 24 10 2 2.58

29 Emotionally engaged 8 12 10 15 12 8 2.54

20 Automate routine tasks 10 7 12 16 16 4 2.51

11 Flexibility 7 8 16 19 11 4 2.48

7 Remember critical tasks 10 12 11 17 10 5 2.31

13 Personalised automatically 15 10 12 6 17 5 2.23

14 Localised for market segments 17 12 8 10 9 9 2.14

15 User can customise 29 9 6 8 9 4 1.55

6 Consistent with earlier version 37 3 8 6 6 5 1.32

© IDC, IIT Bombay

Analysis of UGT

Weights and scores from 65 industry projects Coverage

– Extent to which suggested goal parameters suffice – UGT sufficient for setting goals in 59 / 65 projects– 6 / 65 projects needed additional goals

Relevance – How many goal parameters could be removed from UGT

without hampering coverage significantly Granularity

– Scale– UGT breaks down goals into concrete parameters -

unambiguous interpretation

88

© IDC, IIT Bombay

Internal Reliability

30 goal parameters for 65 industrial projects – Cronbach’s alpha for weights = 0.787 – Cronbach’s alpha for weights = 0.873– A good range is from 0.7 to 0.9

After deleting one goal parameter at a time, weights of 29 goal parameters for 65 industrial projects– Cronbach’s alpha varies from 0.772 to 0.797 for

weights– Cronbach’s alpha varies from 0.863 to 0.878 for scores

89

© IDC, IIT Bombay

Goal Weight and Goal Scores

– 30 goals * 65 projects = 1950 weightage score pairs

90

Goal score Total0 25 50 75 100

Goal weight

0 144(75%)

9(5%)

19(10%)

19(10%)

2(1%)

193(100%)

1 21(14%)

35(24%)

44(30%)

37(25%)

10(7%)

147(100%)

2 17(5%)

41(11%)

142(39%)

146(40%)

23(6%)

369(100%)

3 10(2%)

37(7%)

157(30%)

254(49%)

60(12%)

518(100%)

4 11(2%)

28(6%)

138(28%)

256(51%)

65(13%)

498(100%)

5 1(0%)

18(8%)

57(25%)

97(43%)

52(23%)

225(100%)

Total 204(11%)

168(9%)

557(29%)

809(42%)

212(11%)

1950(100%)

Spearman’s rho = 0.391, n = 1950, p < 0.0005pseudo r2 = 0.082 to 0.219

© IDC, IIT Bombay

Goal Weight and Goal Scores

– 457 / 1241 ‘important’ goals score 50 or less (37%)

91

Goal score Total0 25 50 75 100

Goal weight

0 144(75%)

9(5%)

19(10%)

19(10%)

2(1%)

193(100%)

1 21(14%)

35(24%)

44(30%)

37(25%)

10(7%)

147(100%)

2 17(5%)

41(11%)

142(39%)

146(40%)

23(6%)

369(100%)

3 10(2%)

37(7%)

157(30%)

254(49%)

60(12%)

518(100%)

4 11(2%)

28(6%)

138(28%)

256(51%)

65(13%)

498(100%)

5 1(0%)

18(8%)

57(25%)

97(43%)

52(23%)

225(100%)

Total 204(11%)

168(9%)

557(29%)

809(42%)

212(11%)

1950(100%)

© IDC, IIT Bombay

Individual Goal Parameter Weight-Score Correlations

92

A highly correlated goal-parameter (hypothetical)

A non-correlated goal-parameter (hypothetical)

© IDC, IIT Bombay


93

6. Consistent with earlier versionMean weight = 1.32 (SD = 1.75) Mean score = 30.38 (SD = 34.09) Rho = 0.77 (p < 0.0005)

13. Personalised for the userMean weight = 2.23 (SD = 1.70) Mean score = 43.08 (SD = 33.80) Rho = 0.71 (p = 0.0005)

© IDC, IIT Bombay


94

23. Communication should be clearMean weight = 3.89 (SD = 0.89) Mean score = 71.54 (SD = 20.19) Rho = -0.19 (p = 0.138)

24. Give good feedbackMean weight = 3.55 (SD = 0.97) Mean score = 67.69 (SD = 23.27) Rho = -0.02 (p = 0.901)

Latent Goals

© IDC, IIT Bombay

Ave. weight

Rank on wt

rho (n = 65)

Sig. (2-tailed)

Rank on rho

Findability of options / data / information 4.00 1 0.17 0.19 22Communication should be clear 3.89 2 -0.19 0.14 20Information architecture: well aggregated...

3.78 3 -0.12 0.34 24

Should give feedback / display status 3.55 4 -0.02 0.90 30User should be able to navigate quickly.. 3.51 5 0.09 0.48 25Do primary tasks quickly, easily... 3.49 6 0.34 0.01 12Clearly communicate the conceptual model

3.45 7 0.03 0.83 28

Feel in control / behavioural appeal 3.23 8 0.17 0.18 21Complete tasks in specific time / steps... 3.18 9 0.17 0.19 23Intuitiveness: Able to predict the next step 3.12 10 0.23 0.07 17User should take less time to learn 3.06 11 0.22 0.07 18Product should be internally consistent 3.05 12 0.39 0.00 9Not load memory / put cognitive load 3.05 13 0.02 0.90 29Product should not induce errors 3.03 14 -0.04 0.73 27Help user recover from errors... 2.86 15 0.21 0.09 19Users should be able to learn on their own 2.83 16 0.54 0.00 6No entry barrier: complete critical tasks 2.80 17 0.28 0.02 15Aesthetically appealing / visceral appeal 2.78 18 0.33 0.01 14Product should require no unnecessary tasks

2.78 19 0.07 0.56 26

Consistent with other products... 2.75 20 0.38 0.00 10Always on, always accessible 2.66 21 0.55 0.00 5Tolerate user's errors / forgiving interface...

2.58 22 0.35 0.00 11

Emotionally engaged / reflective appeal 2.54 23 0.53 0.00 7Automate routine tasks / minimise task load

2.51 24 0.48 0.00 8

Flexibility: User controls task sequence 2.48 25 0.33 0.01 13Remember / retain critical, infrequent tasks

2.31 26 0.24 0.06 16

Personalised for the user automatically 2.23 27 0.71 0.00 2Localised for specific market segments 2.14 28 0.64 0.00 3User can customise the product for himself

1.55 29 0.74 0.00 4

Consistent with earlier version 1.32 30 0.77 0.00 1

95Mean weights and weight-score rhos Pearson’s r = -0.815, p < 0.0005

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Assignment 3

From http://www.idc.iitb.ac.in/~anirudha/ugt.html read about the goal setting tool

For the project you are working on, identify 5 most important goals

Interpret these goals in the context of your project (This is an individual assignment, so your interpretation of

what goals are important may be different from that of your teammates)

Submit in google drive by 14-2-14

96

http://www.idc.iitb.ac.in/~anirudha/ugt.html

http://www.idc.iitb.ac.in/~anirudha/ugt.html

97

Questions?

Primary product goals Usability goals

– Useful, usable, desirable– Quantitative and qualitative– You can’t meet all goals, need to prioritise– Usability goals setting tool– Learnability, ease of use, speed of use, ease of

communication, error-free use, subjective satisfaction

98

Questions?

Layers of user experience Conceptual model Modelling users

– Novices / advanced beginners / competent performers / experts

– Personas and goals Product goals

© IDC, IIT Bombay 1 Game. © IDC, IIT Bombay Clues 1.Is equipped with an internal combustion engine 2.Is available in yellow, black, and yellow and black.

Documents

absolute goals

touches experience goals

touches life goals

life slide

iit bombay clues

fast meets end goals

life useful slide

bus stop user