||A description of the most common ways a data item is used appropriately. Conversely, this
metadata item may also warn users about common ways the data are misused.
||Any terms or phrases that relate to, or are cross-referenced with, an item (for example, related
items for search functions).
||Measures intended to provide information regarding the relative quality of a piece or set of
data. Examples of quality metrics might include completeness, continuity, contiguity, currency,
reliability, accuracy, and coherence of a data set (see chapter 3).