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This figure shows a data or document-type gradient, from highly structured data at the left to highly unstructured data at the right. This gradient is indicated by a color gradient from deep yellow at the left to pale yellow at the right. Superimposed on the color gradient are four document icons. From left to right, the content in those document icons looks less and less structured.

Below this data-structure gradient is a table that describes the four main use cases along this gradient. The table background color follows the gradient above the table: deep yellow at the left and pale yellow at the right, indicating that document structure decreases toward the right. The table has two column headings, Data-Centric on the left and Document-Centric on the right. Each column heading spans two columns. The table has four row headings, Use Case, Typical Data, Storage Model, and Indexing.

Row Use Case has these four entries, from left to right:

Row Typical Data has these four entries, from left to right:

Row Storage Model has the following three entries. The first two are under the column heading Data-Centric, and the third is under the column heading Document-Centric. The third entry thus covers the complete spectrum of document-centric data.

Row Indexing has these four entries, from left to right: