1.  A motion describes the position that you would like a machine element to follow for a complete machine cycle. 
The velocity, acceleration, and jerk values are motion derivatives of position.
There are also many that describe the acceleration of the motion. These functions are integrated to obtain velocity and position, or differentiated to obtain jerk.
Each mathematicalfunction is also called a MotionLaw or CamLaw. There many different MotionLaws you can choose from, each with different applications or advantages.
In MotionDesigner, we use algebraic equations to obtain all motionderivatives. This means we can input any value for the independent variable [usually machine angle or time] and obtain an exact motionvalue.
2.  When the motion requirements becomes complex, it is difficult to find a single mathematical function that satisfies all of the motion requirements. 
3.  Therefore, you will usually split, or divide, a motion into two or more segments. Each segment is also defined by a mathematical function and given a MotionLaw. 
4.  The splitting [dividing] process is called segmentation. 
5.  You must choose how many segments and also choose the MotionLaw for each segment. 
6.  You must make sure the total duration of the segments is equal to one machine cycle. 
7.  MotionDesigner joins the Segments endtoend. 
8.  We use the term 'BlendPoint' to describe an instance where one segment ends and another starts. 
The BlendPoints define the motionvalues at the start and the end of the Segment.
The MotionLaw defines the 'shape' and the motionvalues between the BlendPoints.
