Configuring data structures

An article comprising a machine-readable medium storing instructions operable to cause one or more machines to perform operations comprising:

• receiving a description of a logical structure of a data model, the logical structure comprising a first set of elements;
• displaying a first display structure in a graphical user interface (GUI), the first display structure being a graphical representation of the description of the logical structure, the first display structure comprising visual representations of the elements of the logical structure;
• receiving from a user an input action that selects one or more of the visual representations of the elements of the logical structure;
• generating a data structure based on the one or more user-selected visual representations of the elements of the logical structure, the data structure comprising a second set of elements;
• and
• displaying a second display structure in the GUI, the second display structure being a graphical representation of the data structure, the second display structure comprising visual representations of the elements of the data structure.

An apparatus comprising:

• means for receiving a description of a logical structure of a data model, the logical structure comprising a first set of elements;
• means for displaying a first display structure in a graphical user interface (GUI), the first display structure being a graphical representation of the description of the logical structure, the first display structure comprising visual representations of the elements of the logical structure;
• means for receiving from a user an input action that selects one or more of the visual representations of the elements of the logical structure;
• means for generating a data structure based on the one or more user-selected visual representations of the elements of the logical structure, the data structure comprising a second set of elements;
• and
• means for displaying a second display structure in the GUI, the second display structure being a graphical representation of the data structure, the second display structure comprising visual representations of the elements of the data structure.