What are types of inventory management ?

I think this is the definition of inventory management- the purchasing of goods that are then later sold in a store. The following are the main types of inventory control that are used in the retail industry- Just-in-time (JIT) inventory- This inventory control strategy calls for a company to keep only the amount of raw materials needed in order to meet the current demand, thus minimizing the company's carrying costs. Reverse JIT inventory- This inventory control strategy calls for a company to keep a large inventory of raw materials in order to meet future demand, thus minimizing the company's carrying costs. Locked-in stock- This inventory control strategy calls for a company to keep a small inventory of raw materials in order to meet the demand that is greater than the company's current production capacity, thus minimizing the company's carrying costs. Open-stock inventory- This inventory control strategy calls for a company to keep a large inventory of raw materials in order to meet the demand that is greater than the company's current production capacity, thus minimizing the company's carrying costs. Perpetual inventory- This inventory control strategy calls for a company to constantly input all orders for raw materials so that there is always enough raw material for production.