continuous vs discrete model

i have a continuous model of DAB without time delay

and i have discrete model of the same system.

how can i comapre both for switching frequency fs and time period Ts.

G(s)=N(s)/D(s)*delay(s) , where delay(s)=(1-sT/2)/(1+sT/2)

N(s) and D(s) is acvhived thorugh continuous mode;

and discrte model is

G(z)=N'(z)/zD'(z),

N'(z) and D'(z) is acvhived thorugh continuous mode;