Calendar

May 22

Knowing (by) Designing 2013

May 27

13th Intl. Conf. on New Interfaces for Musical Expression

May 28

Graphics Interface 2013

May 21

“ Computer analyst to programmer: "You start coding. I'll go find out what they want." ”

-- Popular computer one-liner

Share this quote on...
Get more quotes via RSS or by joining our Usability Quote of the Day Facebook Page

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

Help us help you!

Spread the word:
Donate
Other ways to help

Jennie J. Decker

Add description

← Button will not work: You have not enabled Javascript. How do I enable it?

Rename / change spelling

Add publication

← Button will not work: You have not enabled Javascript. How do I enable it?

Publications by Jennie J. Decker (bibliography)

1990

Edit | Del

Snyder, Harry L., Decker, Jennie J., Lloyd, Charles J. C. and Dye, Craig (1990): Effect of Image Polarity on VDT Task Performance. In: D., Woods, and E., Roth, (eds.) Proceedings of the Human Factors Society 34th Annual Meeting 1990, Santa Monica, USA. pp. 1447-1451.

“Three experiments were conducted in which positive and negative contrast on visual display terminals were directly compared. Operator tasks included visual search and reading, with accuracy and timeliness of response measured. In all cases where significant differences exist, better performance was obtained with negative contrast (dark characters or symbols on a lighter background). The increases in performance range from a low of 2.0 percent to a high of 31.6 percent. Based on the above results, we believe that there are significant advantages in visual task performance obtained from the selection of negative contrast displays. Current standards that require negative contrast appear to be justified, while future revisions of ANSI/HFS 100-1988 and other standards should seriously consider incorporating negative contrast as a recommendation or requirement.”

1988

Edit | Del

Decker, Jennie J., Dye, Craig J., Kurokawa, Ko and Lloyd, Charles J. C. (1988): Effects of Display Failures and Symbol Rotation on Visual Search Using Dot-Matrix Symbols. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 1386-1390.

“This study was conducted tin investigate the effects of display failures and rotation of dot-matrix symbols on visual search performance. The type of display failure (cell, horizontal line, vertical line), failure mode (ON, failures matched the symbols; OFF, failures matched the background), percentage of failures (0, 1, 2, 3, 4%), and rotation angle (0, 70, 105 degrees) were the variables examined. Results showed that displays which exhibit ON cell failures greater than 1% significantly affect search time performance. Cell failures degrade performance more than line failures. Search time and accuracy were best when symbols were oriented upright. The effects of display failures and rotation angle were found to be independent. Implications for display design and suggestions for quantifying the distortion due to rotation are discussed.”

Edit | Del

Kurokawa, Ko, Decker, Jennie J., Kelly, Patti L. and Synder, Harry L. (1988): The Effects of Image Rotation on Dot-Matrix Characters. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 1391-1394.

“This study investigated how rotation of dot-matrix characters influenced human performance, measured by the response time in a random search task. Factors that influence the extent of dot-matrix pattern distortion were identified, and their effects were investigated. Significant effects were found in angle of rotation (p=0.0046; 0 to 180 degrees in a 5-degree increment), target character's distance from the center of rotation (p<0.0001), and target characters (p<0.0001). Issues pertinent in predicting the effect of dot-matrix pattern distortion on performance are discussed.”

Add publication