Conversion of Defined Fields to More Restrictive Types
Original Publication Date: 1983-Sep-01
Included in the Prior Art Database: 2005-Feb-07
In the revise descriptor task of a word processing application, the user has been able to change the field types to a less restrictive type, such as arithmetic to character, character to text, or arithmetic to text, but the system does not allow the user to change the field types to more restrictive types, such as text to arithmetic, text to character, or character to arithmetic. This restriction was imposed because some data records may have data that does not meet the criteria of the more restrictive field types. There are, however, several conditions under which the user might want to change the field to a more restrictive type: 1) The user simply made a mistake. For example, the user may have typed the command for a character field instead of for an arithmetic field when he was defining the field.