An intranet is a private computer network A computer network, often simply referred to as a network, is a collection of computers and devices connected by communications channels that facilitates communications among users and allows users to share resources with other users. Networks may be classified according to a wide variety of characteristics. This article provides a general that uses Internet Protocol The Internet Protocol is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP technologies to securely share any part of an organization's information or network operating system Some device operating systems, including Mac OS X and all versions of Microsoft Windows since Windows 2000, include NOS features. A NOS is an OS that has been specifically written to implement and maintain networks within that organization. The term is used in contrast to internet, a network between organizations, and instead refers to a network within an organization. Sometimes the term refers only to the organization's internal website A website [citation needed] is a collection of related web pages, images, videos or other digital assets that are addressed relative to a common Uniform Resource Locator (URL), often consisting of only the domain name, or the IP address, and the root path ('/') in an Internet Protocol-based network. A web site is hosted on at least one web server,, but may be a more extensive part of the organization's information technology infrastructure. It may host multiple private websites and constitute an important component and focal point of internal communication and collaboration.

Characteristics

An intranet is built from the same concepts and technologies used for the Internet, such as client–server computing and the Internet Protocol Suite The Internet Protocol Suite is the set of communications protocols used for the Internet and other similar networks. It is named from two of the most important protocols in it: the Transmission Control Protocol (TCP) and the Internet Protocol (IP), which were the first two networking protocols defined in this standard. Today's IP networking (TCP/IP). Any of the well known Internet protocols may be found in an intranet, such as HTTP The Hypertext Transfer Protocol is a networking protocol for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web (web services), SMTP Simple Mail Transfer Protocol is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks. SMTP was first defined in RFC 821 (STD 15) (1982), and last updated by RFC 5321 (2008) which includes the extended SMTP (ESMTP) additions, and is the protocol in widespread use today. SMTP is specified for (e-mail), and FTP File Transfer Protocol is a standard network protocol used to copy a file from one host to another over a TCP/IP-based network, such as the Internet. FTP is built on a client-server architecture and utilizes separate control and data connections between the client and server applications, which solves the problem of different end host (file transfer). Internet technologies are often deployed to provide modern interfaces to legacy information systems hosting corporate data.

An intranet can be understood as a private analog of the Internet, or as a private extension of the Internet confined to an organization. The first intranet websites and home pages began to appear in organizations in 1990-1991. Although not officially noted, the term intranet first became common-place among early adopters, such as universities and technology corporations, in 1992.^{[dubious – discuss]}

Intranets are also contrasted with extranets An extranet is a private network that uses Internet protocols, network connectivity. An extranet can be viewed as part of a company's intranet that is extended to users outside the company, usually via the Internet. It has also been described as a "state of mind" in which the Internet is perceived as a way to do business with a selected. While intranets are generally restricted to employees of the organization, extranets may also be accessed by customers, suppliers, or other approved parties.^[1] Extranets extend a private network onto the Internet with special provisions for access, authorization, and authentication (AAA protocol In computer security, AAA commonly stands for “authentication, authorization and accounting”. The AAA is sometimes combined with auditing and accordingly becomes AAAA).

Intranets may provide a gateway to the Internet The Internet is a global system of interconnected computer networks that use the standard Internet Protocol Suite to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks of local to global scope that are linked by a broad array of electronic and by means of a network gateway Gateways, also called protocol converters, can operate at any layer of the OSI model. The job of a gateway is much more complex than that of a router or switch. Typically, a gateway must convert one protocol stack into another with a firewall A firewall is a part of a computer system or network that is designed to block unauthorized access while permitting authorized communications. It is a device or set of devices which is configured to permit or deny computer applications based upon a set of rules and other criteria, shielding the intranet from unauthorized external access. The gateway often also implements user authentication Authentication is the act of establishing or confirming something (or someone) as authentic, that is, that claims made by or about the subject are true ("authentification" is a French language variant of this word). This might involve confirming the identity of a person, tracing the origins of an artifact, ensuring that a product is what, encryption In cryptography, encryption is the process of transforming information using an algorithm (called cipher) to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key. The result of the process is encrypted information (in cryptography, referred to as ciphertext). In many contexts, the word encryption of messages, and often virtual private network A virtual private network is a network that uses a public telecommunication infrastructure and their technology such as the Internet, to provide remote offices or individual users with secure access to their organization's network. It aims to avoid an expensive system of owned or leased lines that can be used by only one organization. The goal of (VPN) connectivity for off-site employees to access company information, computing resources and internal communications.

Uses

Increasingly, intranets are being used to deliver tools and applications, e.g., collaboration (to facilitate working in groups and teleconferencing) or sophisticated corporate directories, sales and customer relationship management Customer relationship management is a broadly recognized, widely-implemented strategy for managing and nurturing a company’s interactions with clients and sales prospects. It involves using technology to organize, automate, and synchronize business processes—principally sales activities, but also those for marketing, customer service, and tools, project management Project management is the discipline of planning, organizing, securing and managing resources to bring about the successful completion of specific project goals and objectives. It is sometimes conflated with program management, however technically a program is actually a higher level construct: a group of related and somehow interdependent 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 Human resource management is the strategic and coherent approach to the management of an organization's most valued assets - the people working there who individually and collectively contribute to the achievement of the objectives of the business. The terms "human resource management" and "human resources" (HR) have largely or CIO The chief information officer is a job title commonly given to the most senior executive in an enterprise responsible for the information technology and computer systems that support enterprise goals. The CIO typically reports to the chief executive officer, chief operations officer or chief financial officer. In military organizations, they 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 The Intranet Design Annual is a yearly intranet design contest with 10 winners. The contest focuses on usability. The contest is organised by Nielsen Norman Group who each year publishes a report with detailed case studies on the awarded intranets 2007 from Nielsen Norman Group Nielsen Norman Group is a usability consulting company created by well-known user experience experts Donald Norman, Jakob Nielsen, and Bruce Tognazzini. Besides these three principals, there are many lesser known experts in the company, 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.^[2]

Benefits

• Workforce productivity: Intranets can also help users to locate and view information faster and use applications relevant to their roles and responsibilities. With the help of a web browser A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content. Hyperlinks present in resources enable users to easily navigate their browsers to interface, users can access data held in any database the organization wants to make available, anytime and - subject to security provisions - from anywhere within the company workstations, increasing employees' ability to perform their jobs faster, more accurately, and with confidence that they have the right information. It also helps to improve the services provided to the users.
• Time: Intranets allow organizations to distribute information to employees on an as-needed basis; Employees may link to relevant information at their convenience, rather than being distracted indiscriminately by electronic mail.
• Communication: Intranets can serve as powerful tools for communication within an organization, vertically and horizontally. From a communications standpoint, intranets are useful to communicate strategic initiatives that have a global reach throughout the organization. The type of information that can easily be conveyed is the purpose of the initiative and what the initiative is aiming to achieve, who is driving the initiative, results achieved to date, and who to speak to for more information. By providing this information on the intranet, staff have the opportunity to keep up-to-date with the strategic focus of the organization. Some examples of communication would be chat, email, and or blogs. A great real world example of where an intranet helped a company communicate is when Nestle had a number of food processing plants in Scandinavia. Their central support system had to deal with a number of queries every day (McGovern, Gerry). When Nestle decided to invest in an intranet, they quickly realized the savings. McGovern says the savings from the reduction in query calls was substantially greater than the investment in the intranet.
• Web publishing allows cumbersome corporate knowledge to be maintained and easily accessed throughout the company using hypermedia Hypermedia is used as a logical extension of the term hypertext in which graphics, audio, video, plain text and hyperlinks intertwine to create a generally non-linear medium of information. This contrasts with the broader term multimedia, which may be used to describe non-interactive linear presentations as well as hypermedia. It is also related and Web technologies. Examples include: employee manuals, benefits documents, company policies, business standards, newsfeeds, and even training, can be accessed using common Internet standards (Acrobat files, Flash files, CGI applications). Because each business unit can update the online copy of a document, the most recent version is always available to employees using the intranet.
• Business operations and management: Intranets are also being used as a platform for developing and deploying applications to support business operations and decisions across the internetworked enterprise.
• Cost-effective: Users can view information and data via web-browser rather than maintaining physical documents such as procedure manuals, internal phone list and requisition forms. This can potentially save the business money on printing, duplicating documents, and the environment as well as document maintenance overhead. "PeopleSoft, a large software company, has derived significant cost savings by shifting HR processes to the intranet" ^[3]. Gerry McGovern goes on to say the manual cost of enrolling in benefits was found to be USD109.48 per enrollment. "Shifting this process to the intranet reduced the cost per enrollment to $21.79; a saving of 80 percent" ^[3]. PeopleSoft also saved some money when they received requests for mailing address change. "For an individual to request a change to their mailing address, the manual cost was USD17.77. The intranet reduced this cost to USD4.87, a saving of 73 percent" ^[3]. PeopleSoft was just one of the many companies that saved money by using an intranet. Another company that saved a lot of money on expense reports was Cisco. "In 1996, Cisco processed 54,000 reports and the amount of dollars processed was USD19 million" ^[3].
• Promote common corporate culture: Every user is viewing the same information within the Intranet.
• Enhance Collaboration: With information easily accessible by all authorised users, teamwork is enabled.
• Cross-platform Capability: Standards-compliant web browsers are available for Windows, Mac, and UNIX.
• Built for One Audience: Many companies dictate computer specifications. Which, in turn, may allow Intranet developers to write applications that only have to work on one browser (no cross-browser compatibility issues).
• Knowledge of your Audience: Being able to specifically address your "viewer" is a great advantange. Since Intranets are user specific (requiring database/network authentication prior to access), you know exactly who you are interfacing with. So, you can personalize your Intranet based on role (job title, department) or individual ("Congratulations Jane, on your 3rd year with our company!").
• Immediate Updates: When dealing with the public in any capacity, laws/specifications/parameters can change. With an Intranet and providing your audience with "live" changes, they are never out of date, which can limit a company's liability.
• Supports a distributed computing architecture: The intranet can also be linked to a company’s management information system, for example a time keeping system.

Planning and creation

Most organizations devote considerable resources into the planning and implementation of their intranet as it is of strategic importance to the organization's success. Some of the planning would include topics such as:

• The purpose and goals of the intranet
• Persons or departments responsible for implementation and management
• Functional plans, information architecture, page layouts, design.^[4]
• Implementation schedules and phase-out of existing systems
• Defining and implementing security of the intranet
• How to ensure it is within legal boundaries and other constraints
• Level of interactivity (eg wikis Wikis may exist to serve a specific purpose, and in such cases, users use their editorial rights to remove material that is considered "off topic." Such is the case of the collaborative encyclopedia Wikipedia. In contrast, open purpose wikis accept content without firm rules as to how the content should be organized, on-line forms) desired.
• Is the input of new data and updating of existing data to be centrally controlled or devolved.

These are in addition to the hardware and software decisions (like content management systems In a CMS, data can be defined as nearly anything - documents, movies, pictures, phone numbers, scientific data, etc. CMSs are frequently used for storing, controlling, revising, semantically enriching, and publishing documentation. Content that is controlled is industry-specific. For example, entertainment content differs from the design documents), participation issues (like good taste, harassment, confidentiality), and features to be supported^[5].

• Intranets are often static sites, basically they are essentially a shared drive, serving up centrally stored documents alongside internal articles or communications - often one-way communication. However organisations are now starting to think of how their intranets can become a 'communication hub' for their team by using companies specialising in 'socialising' intranets.^[6]

The actual implementation would include steps such as:

• Securing senior management support and funding.^[7]
• Business requirements analysis.
• User involvement to identify users' information needs.
• Installation of web server and user access network.
• Installing required user applications on computers.
• Creation of document framework for the content to be hosted.^[8]
• User involvement in testing and promoting use of intranet.
• Ongoing measurement and evaluation, including through benchmarking against other intranets.^[9]

Useful components of an intranet structure might include:

• Key personnel committed to maintaining the Intranet and keeping content current.
• Social networking A social network service focuses on building and reflecting of social networks or social relations among people, e.g., who share interests and/or activities. A social network service essentially consists of a representation of each user , his/her social links, and a variety of additional services. Most social network services are web based and is useful as a feedback forum for users to indicate what they want and what they do not like.

See also

• Enterprise portal An enterprise portal, also known as an enterprise information portal or corporate portal, is a framework for integrating information, people and processes across organizational boundaries. It provides a secure unified access point, often in the form of a web-based user interface, and is designed to aggregate and personalize information through
• Intranet portal An intranet portal is the gateway that unifies access to all enterprise information and applications on an intranet. It is a tool that helps a company manage its data, applications, and information more easily, and through personalized views. Some portal solutions today are able to integrate legacy applications, other portals objects, and handle
• Intranet strategies In business, an intranet strategy is the use of an intranet and associated hardware and software to obtain one or more organizational objectives. An intranet is an access-restricted network used internally in an organization. An intranet uses the same concepts and technologies as the World Wide Web and Internet. This includes web browsers and
• Intraweb Intranets are networks used internally in organizations to facilitate communication and access to corporate information. Internet protocol suite and tools build intranets and especially the Web application layer to provide organisations with integrated and unified interfaces to corporate 'legacy' data and information systems
• Local area network A local area network is a computer network covering a small physical area, like a home, office, or small groups of buildings, such as a school, or an airport. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased
• Wide area network A wide area network is a computer network that covers a broad area (i.e., any network whose communications links cross metropolitan, regional, or national boundaries ). This is in contrast with personal area networks (PANs), local area networks (LANs), campus area networks (CANs), or metropolitan area networks (MANs) which are usually limited to a
• Web portal Apart from the standard search engine feature, web portals offer other services such as e-mail, news, stock prices, information, databases and entertainment. Portals provide a way for enterprises to provide a consistent look and feel with access control and procedures for multiple applications and databases, which otherwise would have been

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