0 involving two or more people working together for a special purpose:
The presentation was a collaborative effort by all the children in the class.
1 involving two or more people or organizations working together for a particular purpose:
a collaborative effort/venture/study The presentation was a collaborative effort by everyone in the department.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.