A prototype was written to demonstrate the practicability of the presented approach. While the realisation of the Harvester was straight forward, a lot of effort had to be put into the interpretation of a new form and the selection of values for any already categorised one.
The theoretical and very general approach presented in the previous Section 5.2 is complemented by tangible solutions and algorithms in the following. We concentrate on the two core modules in generating a query, which are the Categoriser and the Value-Select. Before going deeper into those, however, the comparison of forms is dealt with.