Why is 'Expense Type' not a list in 'Transaction Data' module 'Essentials of Model Building'.

Why is 'Expense Type' not a list in 'Transaction Data' module 'Essentials of Model Building'.

Section 6.4 of 'Essentials of Model Building' guides us to create 'Transaction Data' module with 'Expense Type' as a line item and then formatted as 'Expense Type' List.

Why can't we have it as a List when creating the module?

Comments

  • Is it to save storage space and improve performance? Because a transaction can have only one expense type!

     

    As 'Total Tranasctions' X 'All Expense Type' cells are created?