Editing is the process of converting data from one form or representation to another, using a picture specification to control the process. This picture specification contains formatting information to convert the internal format to the presentation format, or to reverse the process and interpret the presentation format and convert it back to the internal format.
There are six types of edit patterns. These are:
The numeric edit patterns also have three formats, known as format 1, 2, and 3. These different formats supply one, two, or three picture specifications related to positive, negative, or zero quantities.
Editing can take place either when the internal data is being displayed, known as output editing, or when the displayed data is being interpreted for storage back into the variable, known as input editing.
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