Help with animated process flow
A picture is worth a thousand words...
What are the best elements to use in After Effects to re-create this animated process flow? See attached.

I attempted to do this with animating a dashed stroke of a line drawing but couldn't get exactly the right movement and flow that I wanted.
Also how could I change the shape of the dots while the animation is running? Notice in the upper left the dots are not always ellipses, they are a mix of triangles and squares.
Any help is greatly appreciated.
Thanks
Louis
