Micro CDS/ISIS is an advanced non-numerical information storage and retrieval software developed by UNESCO since 1985 to satisfy the need expressed by many institutins, especially in developing countries, to be able to streamline their information processing activities by using modern (and relatively inexpensive) technologies. The software was originally based on the mainframe version of CDS/ISIS, started in the late'60s, thus taking advantage of several years of experience acquired in database management software development. Several partners contributed to its development trough the years.