
identified by different values of Investor Type Code (IRTP_C) in the Investor table,
as shown in Table 10.2. Investor Type Code is, of course, a column and is represented
by a record in the Column table (COL_COLUMN_C) in the Business Rules Repos-
itory. This record has a Column ID (COL_C) with a value of “0005.” For each
investor, the user determines which subtype the investor belongs to by selecting a
value from a combo box on the screen where investor data is entered. Thus, all of
these three subtypes are determined by user data entry, and not by the application of
business rules. The records for the three subtypes in the Subtype table
(STP_SUBTYPE_M ...