Page Comparison

Parent-Child

• Targets become dependent on each other, and a period of a parent target includes periods of all child targets.

• The change of a child target's period leads to a change in a parent target's period

Dependencies (Start/Finish) 

• Targets are dependent in start/finish. See details - 2.1.1 Dependencies (Start/Finish)

Contribution

• Targets are independent.

• A change in one target doesn't lead to a change in the other connected targets.

This type shows that the work for achieving common results is performed in the same area.