The automation of public and governmental services requires an user interface, where users can query their needs and the service provides all related relevant information. This can be quite challenging, since the user queries contain informal formulations of the customer needs, which may differ strongly from the administrative jargon. Thus, the automated service has to unterstand the meaning of the queries and translate them to administrative jargon.

For example, the registration of a business requires an industry code, for which the automated service should understand the relation between the business purpose entered by the client and the descriptions of different industry codes. For example, if a user wants to register a beauty salon, he/she could enter "I lacquer nails" and should find the right business code for beauty salons.

This is especially challenging if a business code is including a number of very diverse services. For instance, the business code "Miscellaneous other services" includes piercing studios as well as facility management. Traditional keyword based approaches are therefore not promising to deliver good results.