Object dependency setting for characteristic values.

hi,

i have two characteristic Car_type and Car_colour.

i am assigning this to one class CL_car_class(Class type = 001).

now i have to set object dependecy for these characteristic.

For example when my car_type = 'ZEN' i wants that characteristic

car_color gives me only color 'BLUE' else all the colour from car_colour.

Can you please provide me all the steps in brief.

Regards,

Virat