Softimage Xsi: one question about a pic

look at the pic:

i know how to make "only color" and "Bump" effect


but i dont know what is "difusse mapping"(is it Displacement)?


and what is "ccentricty and specular", how to do it(use which tool)?


and this pic made by maya, how to achieve the same effect( pic #3 and #4)by xsi? use which tool? or shader parameter?


thanks a lot!http://www.chinavfx.com/bbs/attachments/200306/10175531-Esferas1.jpg