.. _8_hello_program:
 
===================================
Hello Demo as a Sequential Program 
===================================

Covers:

- Sequential Program Modelling

This demo shows the same behavior as :ref:`1_hello`, but uses the Moddy sequential program model.
I models how two persons, Bob and Joe, talk to eachother.

The words they are talking are the mesages.

The persons send and receive the voice at their IO-port `head`.

.. literalinclude:: code/8_hello_program.py

The simulation outputs:

 :download:`The sequence diagram <code/output/8_hello_program.html>`
 
 :download:`The structure graph <code/output/8_hello_structure.svg>`