Corrigendum to “A Novel MILP Model for the Production, Lot Sizing, and Scheduling of Automotive Plastic Components on Parallel Flexible Injection Machines with Setup Common Operators”

Table 2

Nomenclature for the model.

Index
	Index of machines
	Index of tools
	Index of products (parts)
	Index of time periods
Data
	Total amount of tools available for production
	Backorder cost of product .
	Inventory cost of product
	Stock coverage defined as the number of time periods for the stock minimum coverage of product during time period
	Setup cost of tool on machine
	Setup cost of preparing tool
	Coverage stockout cost of product .
	Demand of product during time period t
	Initial inventory of product
	Maximum inventory units for product during time period
	Minimum inventory units for product during time period
	Amount of tool changes allowed during time period
	Amount of products no longer produced when tool is set up
	Amount of products produced when tool is set up
	1 if tool can be set up on machine , 0 otherwise.
	Production time available during time period
Decision variables
	Backorder of product during time period
	Inventory level of product at the end of time period
	1 if tool is set up on machine during time period and is not set up on machine during time period ; 0 if tool is set up on machine during time period
	1 if tool is set up on machine during time period , 0 otherwise
	Coverage stockout of product during time period
	Production time of tool set up on machine during time period
	Amount of product to produce during time period
	Amount of product no longer produced during time period , while a tool is set up
	Amount of product to produce during time period by subtracting