The Mining Data Mart - Data Mining Techniques in CRM: Inside Customer Segmentation - page 153

Figure 4.3 The IBM SPSS Modeler Multiple Derive node for calculating the relative
utilization of each channel.
customers with zero transactions in the examined period. These customers are
given a zero ratio for all channels.
In a similar manner, customers are further summarized with additional
derived fields, including:
(a) A flag (computed by a conditional derive) which indicates whether a
customer has used an alternative channel (Internet, phone, etc.). This field
is considered as an indicator of the penetration of new channels.