Level 3 shows every small detail of a system. It tells us what goes in, what happens inside, and what comes out of each part.
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The use of color (Hosting Tribunal, 2020) naturally links with the use of emotional design. This principle uses elements on a page, primarily color, to evoke certain feelings that you want your customers to have. For example, a charity page may use subtle colors to stir feelings of pity and sadness. Similarly, an e-commerce website may opt for vibrant shades that call for action.
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