Discrete Filter Structures

The system function of a filter is. $$H(z) = 1 + \frac{13}{24}z^{- 1} + \frac{5}{8}z^{- 2} + \frac{1}{3}z^{- 3}$$

Draw the Direct Form and Lattice Structure implementation of the above filter.

Draw the lattice structure from the following system function: $$H(z) = \frac{1}{1 - 0.2z^{- 1} + 0.4z^{- 2} + 0.6z^{- 3}}$$

Differentiate between FIR system and IIR system.