Perception of Objects in Technical Illustrations: A Challenge in Technical Communication

s1170002 Yu Arai CLR Technical Communication Laboratory Supervised by Prof. Debopriyo Roy 2/14/2013

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Overview 1.  Introduction 2.  Work Flow 3.  Method Ø  Making Figures Ø  Data collecting from Test sheets Ø  Data analysis

4.  Findings 5.  Discussion 6.  Conclusion

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Introduction § Mental image is . . . like a picture in own brain.

§ Mental rotation is . . . Basically about how the brain moves objects in the physical space in a manner that helps with positional understanding of objects in space.

§ Technical illustration is . . . The use of illustration to visually communicate information of a technical nature.

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Work Flow Make Figures ↓ Top view version figures ↓ Make Test seats ↓ Take test ↓ Data collect ↓ Analysis ↓ SPSS ↓ Discussions ↓ Conclusions

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Method – Making Figures (POSER) Heights a.  Chest height b.  Waist height

Activities a.  Holding a Ball b.  Throwing a Ball

Camera Positions 1.  Front – 0degree 2.  1/3rd Side – 30 degrees 3.  Side – 90 degrees 4.  1/3rd Back – 120 degrees 5.  Back – 180 degrees

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B : Top of view

A : Basic View

Method – Data collecting ü 41 students who are non-native English speaker participated in this study. ü Having 20 test sheets.

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Method – Data analysis (SPSS) § Given a score of either 1 or 0.

§ The data was entered in SPSS statistical software for data analysis

§ A score in the range of 1-5 was reported for each test sheet.

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Finding – Cochran Test •  Correct Answer : 1 •  Incorrect Answer : 0 •  Q = 17.968 Asymp.sig. = .525 •  P > .05

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Chest height – Confidence data

3.80

3.68

3.80 3.80

3.73

3.53

3.63

3.70

3.85

3.73

3.30

3.40

3.50

3.60

3.70

3.80

3.90

Front 1/3 side Side 1/3 back Back

Holding

Throwing

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Waist height – Confidence data

3.93 3.93

3.80

3.90

3.73

3.95

3.78 3.78 3.80

3.83

3.60

3.65

3.70

3.75

3.80

3.85

3.90

3.95

4.00

Front 1/3 side Side 1/3 back Back

Holding

Throwing

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Finding – Friedman test •  20 body positions/ height/ action

ü  Chi-square = 25.172 ü  Asymp.sig. = .115 > .05

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Finding – Confidence level Correlations Between Personal Value Sig. Value

Throwing Chest Back .514** .001

Throwing Waist Side .474** .002

Holding Waist Back .439** .005

Holding Waist Front .429** .006

Throwing Waist 1/3rd Back .406** .009

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Significant Correlations between Mean Accuracy Scores and Confidence Scores

Significant Correlations between Mean Accuracy Scores and Confidence Scores Significant Correlations between Mean Accuracy Scores and Confidence Scores

Discussion Ø Body height/rotation/action § When compared with a plan view, it becomes

more various visual cues. •  Accuracy score around the 85 – 95% level

Ø Similarity body height – action - rotation § 20 body position – insignificant difference § Height/Action combinations – insignificant

difference

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Conclusion and Future research § Explored the effect of Body rotation, height and

action ü  Increased the accuracy levels ü  reader’s interesting approach

§  In the future research… o The level of correctness should be analyzed carrying out

time observation.

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Thank you

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