This manual has been conceived as a reference to the use of CISIS utilities and its contents are divided into four chapters, being:
1. Presentation: CISIS description, interface, installation, execution and conventions used by the utilities;
2. MX utility: with a full description of all parameters and functions available;
3. Master file utilities: describes the syntax and usage of the available utilities that operate with master files;
4. Inverted file utilities: describes the syntax and the usage of the available utilities that operate with inverted files.
There are also four Appendices containing additional and transversal information to the chapters and about the internal structure of ISIS.
A Glossary and an Abbreviations list complete the documentation.