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An intranet is a private computer network that uses Internet Protocol technology to securely share any part of an organization's information or network operating system 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, 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 technology used for the Internet, such as client–server computing and the Internet Protocol Suite (TCP/IP). Any of the well known Internet protocols may be found in an intranet, such as HTTP (web services), SMTP (e-mail), and FTP (file transfer protocol). 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 1996-1997. Although not officially noted, the term intranet first became common-place among early adopters, such as universities and technology corporations, in 1992.

Intranets have also contrasted with extranets. While intranets are generally restricted to employees of the organization, extranets may also be accessed by customers, suppliers, or other approved parties. Extranets extend a private network onto the Internet with special provisions for access, authorization, and authentication (AAA protocol).

Intranets may provide a gateway to the Internet by means of a network gateway with a firewall, shielding the intranet from unauthorized external access. The gateway often also implements user authentication, encryption of messages, and often virtual private network (VPN) connectivity for off-site employees to access company information, computing resources and internal communication...

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 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.

Huynh Hai Sam

Benefits

• Workforce productivity: Intranets can help users to locate and view information faster and use applications relevant to their roles and responsibilities. With the help of a web browser 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. 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 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 usually 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. For example, Peoplesoft "derived significant cost savings by shifting HR processes to the intranet". 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". Another company that saved money on expense reports was Cisco. "In 1996, Cisco processed 54,000 reports and the amount of dollars processed was USD19 million".
• Enhance collaboration: Information is easily accessible by all authorised users, which enables teamwork.
• 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). Being able to specifically address your "viewer" is a great advantage. Since Intranets are user-specific (requiring database/network authentication prior to access), you know exactly who you are interfacing with and can personalize your Intranet based on role (job title, department) or individual ("Congratulations Jane, on your 3rd year with our company!").
• Promote common corporate culture: Every user has the ability to view the same information within the Intranet.
• Immediate updates: When dealing with the public in any capacity, laws, specifications, and parameters can change. Intranets make it possible to provide your audience with "live" changes so they are kept up-to-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
• 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, 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), participation issues (like good taste, harassment, confidentiality), and features to be supported.

Intranets are often static sites. Essentially they are 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.

The actual implementation would include steps such as:

• Securing senior management support and funding.
• 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.
• User involvement in testing and promoting use of intranet.
• Ongoing measurement and evaluation, including through benchmarking against other intranets.

Another useful component in an intranet structure might be key personnel committed to maintaining the Intranet and keeping content current. For feedback on the intranet, social networking can be done through a forum for users to indicate what they want and what they do not like.

See also

• Enterprise portal
• Intranet portal
• Intranet strategies
• Intraweb
• Intranet Wiki
• Local area network
• Wide area network
• Web portal
• Kwangmyong (intranet)

References

1. Callaghan, J (2002). Inside Intranets & Extranets: Knowledge Management AND the Struggle for Power. Palgrave Macmillan. ISBN 0-333-98743-8.
2. Pernice Coyne, Kara; Schwartz, Mathew; Nielsen, Jakob (2007), "Intranet Design Annual 2007", Nielsen Norman Group
3. ^ McGovern, Gerry
4. Ward, Toby (2006-06-11). "Leading an intranet redesign". IntranetBlog. Retrieved 2009-04-03.
5. LaMee, James A. (2002-04-30). "Intranets and Special Libraries: Making the most of inhouse communications". University of South Carolina. Retrieved 2009-04-03.
6. Scaplehorn, geoff (2010-03-01). "Bringing the internet indoors - socialising your intranet". IntranetBlog. Retrieved 2010-03-03.
7. Ward, Toby. "Planning: An Intranet Model for success Intranet". Retrieved 2009-04-03.
8. "Intranet: Table of Contents – Macmillan Computer Sciences: Internet and Beyond". Bookrags.com. Retrieved 2009-04-03.
9. "Intranet benchmarking explained". Intranet Benchmarking Forum. Retrieved 2009-04-03.

• McGovern, Gerry (November 18, 2002). "Intranet return on investment case studies". Retrieved 2009-04-03.
• "Making the most of your corporate intranet". April 2, 2009. Retrieved 2009-04-02. {{cite web}}: |first= missing |last= (help)

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