bouwradiusBouwradius is an important provider of information for the building and construction industry. One problem for information brokers in this field is that the information spectrum is very wide, and users searching for information often have difficulty finding what they are looking for. Irion project partner Aduna developed a semantic web portal system called “Spectacle” that allows users to customize the Bouwradius web portal easily to match it to their own needs. This requires an adequate pre-classification of all portal content, which is done using Irion’s product Classify Server.