Because the original systems still use paper records into the back of the book and keep the ID card only. Making it difficult to verify the information. If you have a lot of data and duplication of information. May cause data loss And work in the same system is used at all stages of labor work. This causes delays in customer service, as the record date in the book return may be delayed. Customers can rent one book at a time several books. It may be a problem in a matter of record date or the customer has returned a book that had been loaned to but do not remember. Then back out again Books often lost because data is difficult to determine. This is caused by the shop to collect customer information and data book store and will affect management and hinders the problem occurred. I have brought this process to help to provide storage for books and customer data in an orderly manner. Easy to find And data can be acquired management plan to store better than ever, too.