DATMAN is a system supported on PRIME and PDP 11/70 computer systems which facilitates the creation, maintenance, retrieval and analysis of data. The data can be either numerical or character. Data bases can be accessed either through the terminal interface or a FORTRAN interface. For most applications the terminal interface is adequate. The FORTRAN interface is intended for more sophisticated custom applications for which the user interface is not adequate. The interfaces are completely compatible, any DATMAN data base can be accessed by either interface. This guide describes how to use the terminal interface. Commands exist to create data bases, add data, change data, delete data, transform and retrieve data, and do analysis of data retrieved. The analysis procedures consist of calculating descriptive statistics locally or preparing a SAS or BMDP program for submission to a remote site.