Difference between Joiner and Union Transformation in Informatica?

JOINER	UNION
Using joiner we can remove duplicate rows	Union will not remove duplicate rows
Joiner can be Normal, Right Outer, Left Outer, Full Outer Join	Union is equivalent to UNION ALL in SQL
In Joiner we have one input group and one output group	In Union we have multiple input groups and one output group.
Joiner implemented by using Joiner Transformation in Informatica.	Union implemented by using Union Transformation in Informatica
Joiner Transformation combines data record horizontally based on a join condition	Union Transformation combines data record vertically from multiple sources
Joiner supports both homogenous and heterogeneous	Union also supports heterogeneous(different sources)