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What’s the Meaning behind of "Top Down"?
Although you may be thinking it is about going topless, it actually has a little more meaning then that. "Top-Down" describes a process of designing a product from the top (a vision of the final product) then working through the details to get to that final vision. Designs that follow this process are more likely keep the original vision intact with less compromises.
An alternate method of design is "Bottom-Up". And no, it’s not what you may be thinking..., it is where many smaller ideas are pieced together to form the final product. Unfortunately with the "Bottom-Up" process, a design may or may not capture the final product vision. Although many take the "Bottom-Up" approach because of it's perceived simplicity, this process often takes longer, is more costly and, in many cases, does not meet the "final vision".
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