The large majority of modern production companies have at their disposal a multitude of computer systems. The immediate challenge for these companies consists of integrating these computer systems and databases. How will one arrive at this integration? On the basis of a questionnaire administered in 1985, 1986 and 1987 among a group of large European manufacturers, one comes to the conclusion that this integration is one of the immediate priorities for this group of companies. They do not intend to implement turnkey systems. but instead will integrate the different databases and computer systems gradually. One can see emerging islands of integration, which will be connected later on through the materials requirements planning function. This has, of course, important consequences for the management of the company's information function and the market position of software suppliers.