... | ... | @@ -55,4 +55,20 @@ The heuristics that we choose are the following (with the actual achieved covera |
|
|
* LOC Coverage: 80%
|
|
|
* Class Coverage: 91%
|
|
|
|
|
|
|
|
|
We conducted a pilot study with two participants. The following points were mentioned:
|
|
|
|
|
|
* Leaving a margin on the left side of the paper is preferred.
|
|
|
* Axes naming should be from left to right and from top to bottom respectively only if axes numbering is replaced with letters (i. e. y-axis should start with letter "a" at the top).
|
|
|
* Full and short Braille language were faulty (probably due to faulty tables in liblouis).
|
|
|
* Rasterizing doesn't provide as much accuracy as plotting.
|
|
|
* Data points in scatter plots are better perceivable if they are framed.
|
|
|
* Textures in bar charts might be read as word since the textures consist of letters. A better letter combination should be chosen in order to prevent the urge to read a word.
|
|
|
* Lines in line plots should not overlap with data point frames. (E. g. the circle frame should not have a line inside the circle.)
|
|
|
* Line styles in floating dot area mode might only be distinguishable for experienced users.
|
|
|
* Grid in floating dot area mode might only be helpful for experienced users.
|
|
|
* Lines rasterized in normal mode were concieved as letters
|
|
|
* Lines rasterized in normal mode are recogniced by the two participants
|
|
|
* Legend explaining the tickmarks should be shown as table
|
|
|
|
|
|
|
|
|
Andrey, Richard |