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1、In traditional supply chain inventory management, orders are the only information firms exchange, but information technology now allows firms to share demand and inventory data quickly and inexpensively. We study the value of sharing these data in a model with one supplier, N identical retailers, an
2、d stationary stochastic consumer demand. There are inventory holding costs and back-order penalty costs. We compare a traditional information policy that does not use shared information with a full information policy that does exploit shared information. In a numerical study we find that supply chai
3、n costs are 2.2% lower on average with the full information policy than with the traditional information policy, and the maximum difference is 12.1%. We also develop a simulation-based lower bound over all feasible policies. The cost difference between the traditional information policy and the lowe
4、r bound is an upper bound on the value of information sharing: In the same study, that difference is 3.4% on average, and no more than 13.8%. We contrast the value of information sharing with two other benefits of information technology, faster and cheaper order processing, which lead to shorter lea
5、d times and smaller batch sizes, respectively. In our sample, cutting lead times nearly in half reduces costs by 21% on average, and cutting batches in half reduces costs by 22% on average. For the settings we study, we conclude that implementing information technology to accelerate and smooth the p
6、hysical flow of goods through a supply chain is significantly more valuable than using information technology to expand the flow of information.Inventory management is a commercial enterprise management of the core areas, Enterprises can also achieve an effective key, if we can achieve from the purc
7、hase of stock, Sales then the entire flow of goods and capital flow situation for the unified management and reasonable production, timely sales and inventory is the smallest. reduce the backlog of material, then the business will achieve the best results.1.sessionIn my experience, session word is p
8、robably second only to the extent of the abuse of transaction, even more interesting is the transaction and the session in the context of the meaning of some of the same. session, the Chinese often translated into the session, its original meaning refers to the beginnings and ends of a series of act
9、ion / information, such as a phone call from the dial to pick up the phone to hang up the middle of the process can be described as a series of session. Sometimes we can see that the case during the session in a browser session ,., term used here is its original meaning, is open from a browser windo
10、w to close the period of . The most confusing is the user (client) during the first session, the words, it may refer to a series of user actions (generally with a specific purpose related to a series of actions, such as log on to buy goods from to sign out such an online shopping checkout process, s
11、ometimes also called a transaction), but sometimes may be just that a connection could also be that the meaning of , the difference can only be inferred by context . However, when the term session is associated with the network protocol when it often implies a connection-oriented and / or on hold so
12、 the two meanings, connection-oriented refers to both the communication in the communication prior to first establish a communication channel, such as phone calls, until the other party answered the phone communication can begin, and this is the opposite of writing, before you sent the letter, the t
13、ime you and can not confirm the other side of the address is correct, communication channels Buyi Ding can be established, but the sender, the communication has already begun. Keep state means the communication party is able to associate a series of messages, making messages between each other depen
14、ds, for example, a waiter can recognize old customers come back and remember the last time the customer still owes a store, dollar . Examples of this type, a TCP session or a POP3 session . And to the web server flourishing, session in the context of semantic web development has a new expansion, its
15、 meaning is mean to the client and server to maintain state between the solution . Session is also sometimes used to refer to such solutions, storage structures, such stored in the session to xxx where . For various 用于 web development languages are available to some extent on the support of such a s
16、olution, so in the context of a particular language 下, session also used to denote a solution on behalf of the language, such as regular Java in the provision of javax.servlet.http.HttpSession referred to as the session . In view of this confusion has been changed, in this article use the term session will have different meanings depending on the context, drew attention to the resolution. In this article, the use of Chinese during the browser