A data description entry specifies the characteristics of a data item.
This chapter describes the coding of data description entries and record description entries (which are sets of data description entries). The single term data description entry is used in this chapter to refer to data and record description entries.
Data description entries that define independent data items do not make up a record. These are known as data item description entries.
The data description entry has three general formats. All data description entries must end with a separator period.
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