Adapting CDS/ISIS to index hyphenated and numeric words and incorporating case sensitive storage and retrieval

The mini‐micro version of CDS/ISIS (Computerised Documentation System/ Integrated Set of Information Systems) is a generalised system developed by UNESCO for non‐numerical databases. The first version was released in 1985. The latest version, released in 1989, is version 2.3. It has many improvements over version 1; the most prominent ones being speedier file inversion (creation of indexes), a new facility of free‐text searching, a more versatile formatting language, and the PASCAL language module for programming.