Dr. Michael Levine In this talk I will continue the discussion of testing functional components of the mean function in the multivariate nonparametric regression. We will mostly concentrate on the schemes that can be loosely described as "Functional ANOVA approach". This area saw some significant activity in 1990's and early 2000's; some of the main authors are 1) H. Dette, A. Munk and their students 2) L.Stefanski and J. Hart 3) D. Barry 4) L. Yang and his students. Many of these approaches can be carried over (after some suitable modification) to the testing of functional components in the nonlinear time series models. I will try to discuss this connection between the nonparametric regression and time series theory. Time permitting, I will also mention some possible applications of this theory.