Complicating Factors
Bottom-up strategy: correct as needed and get on with it
- But you can only correct your copy; the original data is beyond your control
- When next year’s parcel dataset arrives you’ll have trouble transferring your changes
Top-down strategy: standardize spellings and redesign system to double check when entering the data
- Trapping errors is hard rigid, and complex
- Can’t know names in advance: ‘John & Jane Smith et al.’
- Official owner name isn’t the right grouping anyway