-@pspp{} is a tool for statistical analysis of sampled data. It reads a
-syntax file and a data file, analyzes the data, and writes the results
-to a listing file or to standard output.
+@pspp{} is a tool for statistical analysis of sampled data.
+It reads the data, analyzes the data according to commands provided, and writes the results
+to a listing file, to the standard output or to a window of the graphical display.