The authors are employed at Statistics Netherlands, which is responsible for collecting, processing, and publishing statistics to be used in government and business. Harry Habets started in 1983 at the statistical department of Company Finance at Statistics Netherlands in Heerlen and developed several systems for which he created the database as well as the accompanying software. In 1982 Huub Gillissen began his career at Statistics Netherlands in Heerlen and, a year later, moved into the Algemeen Bedrijven Register (ABR), Common Company Administration where he collected quite a few interesting experiences, in five subsequent ABR IT implementations.