Chapter 7 : Intranet and Extranet

7/30/2019 Chapter 7 : Intranet and Extranet

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Chapter 7

Intranet and Extranet

www.prestonians.webnode.com


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Intrabusiness E-Commerce

at Toshiba America

Problem

Intranet doubled as dealer extranet

300 dealers needed parts quicklyOrders placed by phone or fax by 2:00 inorder to have next-day delivery

Shipping fees expensive

Cumbersome order-entry system created in1993 with no significant improvement



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Intrabusiness E-Commerce

at Toshiba America

Solution1997, Toshiba created a Web-based order-entrysystem using extranet/intranet

Dealers lace orders for parts until 5:00 for next-day deliverymatter of hours to shipping

Physical warehouse in Memphis, TN near FedExheadquarters ensures quick delivery

Dealers also:Check accounts receivable balances

Pricing arrangements

Read service bulletins, etc.



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Figure 7-1

Toshibas Customer Service Process

Source: Compiled from Jones(1998). Used by permission.



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Intrabusiness and

Business-to-Employee (B2E) E-commerce (cont.)

Between and among corporate employees

Large organizations have classified ads on the

intranet where employees can buy and sellproducts and services from each other

Especially popular in universities

Interconnect their intranets to increase

exposure

Employees collaborate and communicate usingEC technologies



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Architecture of the Internet, Intranet

and Extranet

THE INTRANET is a public and global communicationnetwork that provides direct connectivity to anyone over a localarea network (LAN) or Internet Service Provider (ISP). TheInternet is a public network that is connected and routed over

gateways.An Intranet is a corporate LAN or WAN that uses Internettechnology and is secured behind companys firewalls.

THE EXTRANET: An extranet, or extended intranet, uses the

TCP/IP protocol networks of the Internet, to link intranets indifferent locations.

Extranet provide secured connectivity between a corporationsintranets and the intranets of its business partners, materialssuppliers, financial services, government, and customers.



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Characteristics of the INTERNET,

Intranet and Extranet

NetworkType

Typical Users Access Type ofInformation

Internet Any individual with dial-

up access or LAN

Unlimited public:

no restrictions

General, public,

and advertorial

Intranet Authorized employeesonly

Private andrestricted

Specific,corporate, andproprietary

Extranet Authorized groups fromcollaborating companies

Private andauthorized outsidepartners

Shared inauthorizedcollaboratinggroups



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Intranets

Intranetnetwork architecture designed to serveinternal informational needs of a company using Webconcepts and tools

To build an intranet, we need Web server, browsers,web publishing tools, back-end databases, TCP/IPnetworks (LAN or WAN), and firewall.

Provides:

Internet capabilities

Search engines

Tools for communication and collaboration



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Intranets (cont.)

Cost of converting an existing networksystem to internal Web is relatively low

Fairly safe within company firewalls

Employees can get out on the Web easily

Outsiders cannot get into the intranet

Change organizational structures andprocedures, help reengineer corporations



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Figure 7-2

Architecture of an Intranet



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Intranet Functionalities

Intranet functionalities

Corporate/department/individual Web pages

Web-based database access for ease of use

Search engines, indexing engines, directoriesassisted by keyword search

Integration with EC: interface with Internet-based electronic sales and purchasing

Interactive communication

Chatting

Audio support

Videoconferencingwww.prestonians.webnode.com


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Intranet Functionalities (cont.)

Document distribution and workflow

Web-based downloading

Routing of documents

Groupware including

Enhanced e-mail

Bulletin boards

Screen sharing

Other group support tools

Conduit for computer-based telephony system

Extranet: linking geographically dispersed branches,customers, and suppliers to authorized sections ofintranets creates happier customers, more efficientsuppliers, and reduced staff costs.www.prestonians.webnode.com


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Electronic Commerce Technologies



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Intranet Applications

Intranet application areas

Electronic commerce

Customer serviceSearch and access to documents

Personalized information

Enhanced knowledge sharingEnhanced group decision and businessprocesses



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Intranets Applications (cont.)

Intranet application areas (cont.)

Empowerment

Virtual organizations

Software distributionDocument management

Project management

Training

Enhanced transaction processing

Paperless information delivery

Improved administrative processes



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Intranet Functionalities

Industry-specific intranet solutionsClassified by industry instead of technology

Development of business models is a criticalconcern for managerial success of intranets

Top 100 intranet/extranet solutions classifications

Financial services

Information technologyManufacturing

Retail

Services



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Intranet Application (Case Studies)

Intranet case studies

Moen-connected ERP

Compaq Computer Corp.investment assistant

Silicon Graphics, Inc.share huge internal Websites

Coopers & Lybrandshare knowledge amongcorporate employees



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Extranets

Extranet combine the privacy and securityof intranets with the global reach of the

Internet, granting access to outsidebusiness partners, suppliers, andcustomers to a controlled portion of theenterprise network.

Extranets are becoming the majorplatforms for B2B EC replacing orsupplementing EDI.



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The Structure of Extranets

ELEMENTS OF EXTRANETExtranets are comprised of a wide variety of componentsand participants, and there are several possibleconfigurations. These include intranet, Web servers,

Firewall, ISPs tunneling technology, interface softwareand business applications.

The tunneling means that data transmission across theinternet can be made secure by authenticating andencrypting all IP packets.

Extranets are configured by two basic methods:

They can be implemented using a direct leased line withfull control over it, linking all intranets.

A secure link (tunnel) can be created across the Internet,which can be used by the corporation as a VPN, usually ata much lower cost.



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Extranet Products and Services

Four Categories of extranet products and services.

1. Extranet development tools: to design extranet servers, a client-base, security, EC applications, and electronic catalogs.

2. Extranet hosting and network connectivity: provide secure ISPconnections to Internet back bones and host extranet services forcorporations.

3. Extranet services provide extranet design expertise with proprietarytools or turnkey services for building and operating extranet-based

services for corporate clients.4.Virtual private networks: provide components specifically design

for connecting remote operators and creating IP WANs forcorporations



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Extranet tools and Services Providers

1. Consultants

2. Developers

3. System integration

4. Internet service provider



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Applications of Extranets

BENEFITS OF EXTRANETS

1. Enhanced communication

Improved internal communication

Improved business partnership channelsEffective marketing, sales and customer support

Collaborative activities support

2. Productivity enhancements

Just-in-time information delivery

Reduction of information overload

Productivity collaboration between work groups

Training on demand



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Applications of ExtranetsBENEFITS OF EXTRANETS (Cont.)

3. Business enhancementsFaster time to market

Simultaneous engineering potential

Lower design and production costsImproved client relationships

New business opportunities

4. Cost reduction

Reduced errorReduced travel and meeting

Improved comparison shopping

Reduced administrative and operational costs



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Applications of ExtranetsBENEFITS OF EXTRANETS (Cont.)

5. Information deliveryLow-cost publishingLeveraging of legacy systems

Standard delivery systemsEase of maintenance and implementationElimination of paper publishing and mailing costs.

INDUSTRY SPECIFIC EXTRANET SOLUTIONSThe application of extranets are classified byindustry. The popularly applied industries areinformation services, computers, financial services,travel, Industry/ manufacturing, business and

professional, real estate and customers.www.prestonians.webnode.com


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Managerial Issues

Find business opportunities by utilizing theintranet and extranet

Analyze whether the connectivity requirementsuits the intranet or extranet

Plan the most secure and economical choice forimplementation

Select the best outsourcers for implementationSelling the intranet

Finding intranet applications

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Chapter 7 : Intranet and Extranet

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