Functions
can be divided into two groups: Main functions and auxiliary functions.
Main
functions influence directly the working object. Again, we have two sub-groups:
those that change the state of the object and those that change its position.
Auxiliary
functions help to manage the process, but don’t have a direct input to the
working object. On to highest level, we have two auxiliary functions: the handling
that is a more physical sub-process and the steering that operates the process
and deals with data.
In tree harvesting
operations, the main functions are the harvesting and the extraction.
Though the auxiliary functions are important, too, in Technodiversity they will
not be treated further.