The user needs to perform operations on one or more objects by moving them from one place to another.
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Let users pick up and rearrange content by dragging it across the screen
Instinctively, many users try dragging and dropping objects in user interfaces. This conceptual metaphor with clear ties to the physical world provides a level of direct manipulation few methods can match. It is seen as one of the most effective ways to rearrange items in a list, move objects from one place to the other, or even upload files.
As Drag and drop is not fully accessible you may want to consider supporting alternate ways to re-arrange your content modules.