Resource Constraint

hi,

We are working with resources in which many products can be scheduled based on sizes. Hence, we use size as a characteristic for resource and product. But while defining the characteristic value for resource it will be Resource A: Size:25-75mm, B: Size: 75-125mm.

If I get a product for 78 dia, System should automatically schedule in resource B. Is it possible? In case of nay solution please help.

Thanks in advance

dhaiva