Difference between SHAPER and PLANNER

In Shaper machine, tool is having reciprocating motion and 
w/p is clamped on table which is stationary. It is mostly 
suitable for light duty operation.In Shaping large cutting 
force is transferred to tool.

In Planer machine, tool is having stationary and w/p is 
clamped on table which is reciprocating moton. It is mostly 
suitable for Heavy duty operation.In planner large cutting 
force is transferred to table.