![]() ![]() ![]() The affordance here is the final selection of the (perceived) correct answer to continue through the module (7). Looking at Figure 3, an affordance is presented each time a checkbox is selected. We can see several affordances in the Duolingo app. In other words, affordances make the desired actions possible. The check boxes indicate the available options that are ready for selection.Īffordances - Affordances are the perceived possible actions which a system will allow. Noted in Figure 2, there are 4 images pictures with titles and each with their own check boxes (5). Discoverability is a cumulation the five other principles mentioned a result of those principles working in harmony. ![]() Mapping in the Duolingo app displays several controls shown in Figure 1 including: the language in use (1), lesson modules (2), progress through each module (3), and extension icons such as messaging (4).ĭiscoverability - What you can do in the present state of an object is discoverability. An instance from The Design of Everyday Things by Donald A Norman explains the connection between lights switches and various lights on a ceiling. Mapping offers users a relationship between the various controls and functions. Mapping - The Duolingo app offers a clean, flat and nicely laid out mapping model right on the apps main screen. ![]()
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