AddStep                 Create the workflow with the previous defined
                        operation and data.
CDORemapper             CDO Remap Data Transformation for 'startR'
Collect                 Collect and merge the computation results
Compute                 Specify the execution parameters and trigger
                        the execution
NcCloser                NetCDF file closer for 'startR'
NcDataReader            NetCDF file data reader for 'startR'
NcDimReader             NetCDF dimension reader for 'startR'
NcOpener                NetCDF file opener for 'startR'
NcVarReader             NetCDF variable reader for 'startR'
SelectorChecker         Translate a set of selectors into a set of
                        numeric indices
Sort                    Sort the coordinate variable values in a
                        Start() call
Start                   Declare, discover, subset and retrieve
                        multidimensional distributed data sets
Step                    Define the operation applied on declared data.
indices                 Specify dimension selectors with indices
values                  Specify dimension selectors with actual values
