The Tithe Schedule holds all data in one table for each Tithe District. This is fine on paper, in a database, however, this approach has considerable drawbacks.

• Selection of data and analysis on different levels is inhibited.
• Data in fields of the schedule is not atomic.
• Columns are not identical in all schedules.
• Parishes are identified within tithe districts; analysis on parishes is inhibited

The process of arranging data in a relational database according to relational database theory is called 'normalisation'.