Well. Following the maya tutorial was pretty easy. the instructions were quite straightforward. Mr Ken was explaining about the differences between the two different rigging skeletons IK and FK.
Inverse Kinematics.
And
Forward Kinematics.
In this exercise we created an IK rigging, where we set a bone along the robot arm. The way IK works, if I remember correctly is faster to animate an object. Its quick to set up and use.