In this chapter we describe concisely what Coverity Fortran Syntax Analysis actually does and what the generated output means. The analysis is carried out in four stages: the analysis of the separate program units, the generation and analysis of the reference structure (call tree), the determination of the dependencies of modules, and the analysis of the integral program. Command-line options determine which of the analysis stages are activated. Beside specifying these options you can specify language extensions and analysis options in the configuration file used.