derive values of characteristics based on some other parameters

hello Team,

I am ABAP consultant.Need help on MM part for MDG project

For creating material with classification view,

I have class               : z****

          class type        : z*****

          Characteristics : Access_Type ( with multiple values) say Test_1 & Test_2.

now in my case I have to derive the values of characteristic based on some other variables like trail,rental,subscription etc.

e.g. if Trial = 'X'

         Rental = 'X' and

         Subscription = '  ' then values Test_1 and Test_2 should be assigned to characteristics

I there any configuration setting for achieving this ?

Please help.