There's a category of items.With the ability to check the receipts and expense items.The work is planned to store the item.With the skills to respond to the problem. The receipt of payment. Storage.
Knowledge of the type of product knowledge in the product receiving. And goods are planning to store the product has the skills to answer the problem of paying for storage.
Knowledge of the types of goods knowledgeable in receiving goods. And the goods supply is planning to store goods skills in answering the problems receiving, paying, storage .