Nomenclature

Fuzzy variable

*ϵ

Unit

Definition

${\widetilde{DBC}}_c$

{c}

$/unit

Demand backlog cost charge from each customer c

${\widetilde{PT}}_{g\ast }$

{p}

min/unit

Unit processing time of product g from plant p

${\widetilde{PC}}_{g\ast t}$

{p}

$/unit

Unit production cost of product g from plant p in time period t