One Product Class is assigned to every product kept in the system. This class determines the parameters to be monitored for the product, i.e. in case of t-shirts it might be their material, color and size for instance.
The class definition also determines the exchangeability of the particular products - according to the admissible value range specified for the particular parameters. The final exchangeability is calculated based on the weight of the particular parameters - deviations in the least important parameters will have the smallest effect on the exchangeability.
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