The model container can have two choices: 1.) A factors child
container for CONSIDEO MODELER import, or 2.) a projects and resources child container
for CONSIDEO PROCESS MODELER import.
The interaction attribute "type" stores information
about the type of the from and to elements: Case 0 means "associated
milestone". This is an interaction from a producer to a milestone
and the milestone is the "associated" milestone. Case 1 is the same as
Case 0 but with an "external" (not associated) milestone and the opposite
direction. Case 2
describes an interaction between a resource and a producer.
If you do NOT work with the PROCESS MODELER the "type" attribute should
be missing or should have the value "3".