A method for designing a data module presents a series of components in a parentage view of a window on a display, the parentage view being hierarchically arranged with each component occupying a respective position in the hierarchy. A user is enabled to drag one or more of the components displayed in the parentage view into a new position within the hierarchy. As a result, the relationship data among the components in the data module are automatically rearranged once the components are dropped into their respective new positions in the hierarchy.
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