Fitt's LawOnline version Design principles by Elysa Darling 1 Microsoft Toolbars offer the user the option of displaying a label below each tool. What would be a reason why labeled tools can be accessed faster? (Assume, for this, that the user knows the tool and does not need the label just simply to identify the tool.) Choose one or more answers a The label becomes part of the target. The target is therefore bigger. Bigger targets, all else b When labels are not used, the tool icons crowd together and the user is more likely to make a mistake and therefor slows down their actions. c When targets are not labelled, you can fit more on a screen and therefore the user is more likely to see the target faster. 2 You have a palette of tools in a graphics application that consists of a matrix of 16x16-pixel icons laid out as a 2x8 array that lies along the left-hand edge of the screen. Without moving the array from the left-hand side of the screen or changing the size of the icons, what steps can you take to decrease the time necessary to access the average tool? Choose one or more answers a Change the array to 4x4, so that the tools are lined up in a box near the top of the screen b Change the array to 1X16, so all the tools lie along the edge of the screen. c Ensure that the user can click on the very first row of pixels along the edge of the screen to select a tool. There should be no buffer zone. d Create a buffer zone where the user cannot accidentally click to select a tool e All of the above 3 A right-handed user is known to be within 10 pixels of the exact center of a large, 1600 X 1200 screen. You will place a single-pixel target on the screen that the user must point to exactly. What are the primary pixel locations on the screen that the user can access fastest? Choose one or more answers a The pixel immediately at the current cursor location: Click the mouse and you're done. b The bottom-right corner. c The top-left corner. d The top-right corner. e The bottom-left corner. f Half distance to the left or right of the center.
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