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Why to give symbols outside but we can stuck them on the control buttons....I am not that expert like above other guys but i am good at solving problems by showing visual solutions.... First Solution:(LEFT) Using Symbols on the buttons with red and blue colors for air and heat..You can use any symbols you think best Second Solution(RIGHT): Why not just use ...


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Use Dual Switches You are correct that a user trying to dry their hair doesn't really care if the temperature is 80C or 105C but they do care if it is HOT or COLD. 1. speed of the fan The fan is a completely separate interaction that when OFF none of the other settings matter. I would indicate this to the user by having a switch completely dedicated to ...


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Like Rengers said: the user's perspective is the first principle. All decisions should optimize the user's experience. I don't know the exact details of the project, but the following considerations might help: As mentioned already, the user is unlikely to care about exact temperatures, so there's no need to specify these. If users do care, they likely need ...


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I think it depends on the needs of the user and the technological possibilities. If the user needs to be sure that the air has a specific temperature, it would be great if that could actually be shown on the controls. However, I highly doubt that this is the case. Also, I assume that you cannot guarantee those exact temperatures. In regards to the faders vs ...


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This design is difficult to interpret, so the question is challenging to answer. Here's my interpretation of the design: The user can selects a default. Only an item that is switched On can be a default. You want to prevent users from switching the current default to Off. If the user selects a default that is Off, the system forces it to switch On. This ...



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