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An intranet is a private network, accessible only to an organization's staff.〔〔 ("The Difference Between Internet, Intranet, and Extranet" ), October 19, 1998, Steven L. Telleen, http://www.iorg.com/〕 Generally a wide range of information and services from the organization's internal IT systems are available that would not be available to the public from the Internet. A company-wide intranet can constitute an important focal point of internal communication and collaboration, and provide a single starting point to access internal and external resources. In its simplest form an intranet is established with the technologies for local area networks (LANs) and wide area networks (WANs).〔RFC 4364〕 Intranets began to appear in a range of larger organizations from 1994.〔Nielsen, J. and Sano, D., '(1994 Design of SunWeb - Sun Micro-systems' Intranet )', Useit.com, 1994.〕 The launch of a free webserver from Microsoft in 1996 helped make the technology accessible to a wider market.〔("HERE COMES THE INTRANET" ), 1996, AMY CORTESE, BusinessWeek〕 ==Uses== Increasingly, intranets are being used to deliver tools, e.g. ''collaboration'' (to facilitate working in groups and teleconferencing) or sophisticated corporate directories, sales and customer relationship management tools, project management etc., to advance productivity. Intranets are also being used as corporate culture-change platforms. For example, large numbers of employees discussing key issues in an intranet forum application could lead to new ideas in management, productivity, quality, and other corporate issues. In large intranets, website traffic is often similar to public website traffic and can be better understood by using web metrics software to track overall activity. User surveys also improve intranet website effectiveness. Larger businesses allow users within their intranet to access public internet through firewall servers. They have the ability to screen messages coming and going keeping security intact. When part of an intranet is made accessible to customers and others outside the business, that part becomes part of an extranet. Businesses can send private messages through the public network, using special encryption/decryption and other security safeguards to connect one part of their intranet to another. Intranet user-experience, editorial, and technology teams work together to produce in-house sites. Most commonly, intranets are managed by the communications, HR or CIO departments of large organizations, or some combination of these. Because of the scope and variety of content and the number of system interfaces, intranets of many organizations are much more complex than their respective public websites. Intranets and their use are growing rapidly. According to the Intranet design annual 2007 from Nielsen Norman Group, the number of pages on participants' intranets averaged 200,000 over the years 2001 to 2003 and has grown to an average of 6 million pages over 2005–2007.〔Pernice Coyne, Kara; Schwartz, Mathew; Nielsen, Jakob (2007), "Intranet Design Annual 2007", Nielsen Norman Group〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「intranet」の詳細全文を読む スポンサード リンク
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