【正文】 ? This industry is based on agentbuyerseller relationship. The change appears in the type of this relationship. The system bees an important actor in this relationship。 Ericsson, 2011a) argue for a critical review and reinvention of current supply chain models. Gattorna (2010) stresses that people and their behavior, and not technology, is driving the development of supply chains. Several areas of human activity along the supply chains must be examined and treated as social, economic and behavioral systems (Ericsson, 2011a). Ayers and Malmberg (2002) develop a four stages maturity model to show key enablers of supply chain improvement. Both for supply chain organization and demand chain supply chain. INTERNET IMPACT ON VALUE CHAIN MANAGEMENT We define the value chain as the chain of activities that an enterprise performs for the purpose of delivering valuable services or products [WikiValue]. The value chain management consists of the demand chain management and the supply chain management. We will examine in this section how the web is changing the value chain management. We focus on the demand chain management and we consider as an example the residential real estate services. EDemand Chain Management A value chain is a chain of activities that a firm operating in a specific industry performs in order to provide valuable products and services for the market.[WikiValue]. Michael Porter (1985) has made a major contribution on related issues of business management. The valuechain concept has been enlarged besides individual firms. It can apply to distribution networks and whole supply chains. The delivery of a mix of products and services to the end customer will mobilize different economic factors, each managing its own value chain. The Supply chain management includes the methods, systems, and leadership that continuously improve an organization’s integrated processes for product and service design, purchasing, inventory management, planning and scheduling, logistics, distribution, and customer satisfaction (Mentzer et al., 2001). Demand chain management (DCM) is the same as supply chain management, but with emphasis on consumer pull vs. supplier push. The demand chain begins with customers, then funnels through any resellers, distributors, and other business partners who help sell the pany’s products and services. The available webbased technologies now permit strong customer and supplier integration for inventory planning, demand forecasting, order scheduling, targeted marketing and customer relationship management. Frohlich and Westbrook (2002b) introduce four webbased demand and supply integration strategies (Figure 1) that describe the extent to which panies are using the Internet in integration with their suppliers or customers.Figure 1. Evolution of real estate servicesChanges in the Residential Real Estate Industry Until recently, Realtors controlled the residential real estate sales process. Only Realtors had plete access to MLS listings and housing information. Even if a buyer saw a house in an advertisement, it usually never contained an address. This forced the buyer to call or visit a real estate office for more information and to interact with an agent. After the introduction of the internet in the residential industry, home buyers have more information available to them than ever before. Because of this, Realtors no longer control the process, and it is possible today to link seller and buyer of a house without intermediaries. New forms of brokerage (. discounted brokerage) are evolving and modifying the realestate industry structure. Besides, there seems to be a growing trend of unbundled services typically offered by realestate agents. There have been new development of internet services in real estate industry. Several real estate search engines have been developed providing advanced tools and information for the different actors of this industry. This involves not only property search, but also other activities like mortgage search, title search, value analysis etc. In another work, we analyzed and pared several advanced real estate search engine services. These consist of several subsystems with many sets of activities or processes. As examples of these features we can list: the value analysis service, mobile application, home alert, title pany and others. These new services created new changes in the residential real estate structure. The interaction between the real estate agent and the buyer is now carried out by , teleconference, file sharing. Also, we noticed that the role of the real estate agent played in the advanced real estate scenarios bees less important pared to the traditional real estate industry. Using the real estate search engines, buyers and sellers can list and search for houses, potentially bypassing traditional realestate agents.We can consider that the change in residential real estate industry structure is illustrated in several dimensions: ? This industry is an information intensive and information driven. The change appears in the type, diversification and the degree of availability of this information。 Holweg, 2011。 Whang, 2002). Supply management has focused on moving products and services downstream towards the customer. Demand chain management changes the emphasis towards ‘customization’, responding to product and service opportunities offered by specific customers or customer groups sharing particular characteristics. The markets have bee much more volatile, and under such conditions the old assumptions are not always valid. (Gattorna, 2010。另外，在系統(tǒng)設(shè)計程中其它老師也給于我很大的幫助，還有同組的同學(xué)同樣給與我不少幫助，使本系統(tǒng)的設(shè)計和論文的撰寫工作得以順利完成。他無論在理論上還是在實(shí)踐中，都給與我很大的幫助，使我得到不少的提高。在本次畢業(yè)設(shè)計中，我從指導(dǎo)老師王江教授身上學(xué)到了很多東西。沒有他們的幫助，我將無法順利完成這次畢業(yè)設(shè)計。畢業(yè)設(shè)計給我上了本科學(xué)習(xí)的最后一課，讓我對本科學(xué)習(xí)進(jìn)行了一個總結(jié)，對即將到來的職業(yè)生涯進(jìn)行了展望，我會帶著學(xué)到的東西告別校園，自信滿滿的走向社會，感謝生活！謝辭經(jīng)過這次系統(tǒng)設(shè)計及論文寫作，我的能力有了很大的提高，比如操作能力、分析問題的能力、嚴(yán)謹(jǐn)?shù)墓ぷ髯黠L(fēng)等方方面面都進(jìn)步了。感受到知識的重要性，