ABAP Dictionary (BC-DWB-DIC)

Object that describes the data type and semantic meaning of a table or structure field.

Fields with the same purpose should have the same underlying data element.

Data elements are like types, so you can address them in ABAP programs using the TYPE statement. This allows you to define elementary types that have the type attributes (one of the ABAP Dictionary data types, field length, and, where appropriate, number of decimal places) of a data element.