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user-friendliness▼◼◼◼(quality of being user-friendly)noun
usability▼◼◼◼(degree to which an object or device is easy to use)noun[UK: ˌjuːzəˈbɪlɪti ] [US: ˌjuzəˈbɪlɪti ]
look and feel▼◼◼◼(visual design and behaviour of a user interface)noun
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