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WWWWWW
Chapter 14
Intranets & Extranets
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2WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
OBJECTIVES
• Introduction
• Technical Infrastructure
• Planning an Intranet
• E-mail & Intranet
• Extranets
Intranets & Extranets: Objectives
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3WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
WHAT IS AN INTRANET?
• An organization-wide software & information distribution system applying Internet technology to a closed network
• Intranet operation is a communication project designed by technical staff
• A network of people, not wired machines• Usually runs in a client/server environment
and a local area network configuration
Intranets & Extranets: Introduction
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BENEFITS
• Links employees & managers together• Automates a lot of intra-organizational
traffic• Enables a company to gain better access to
its primary resources – knowledge & experience
• Serves as a creative & empowering tool• Establishes the foundation for developing
enterprise-wide information systems
Intranets & Extranets: Introduction
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BENEFITS (Cont’d)
• Provides a model for new internal information management collaborative computing
• Prepare a wealth of Internet knowledge to employees
• Eases process integration
• Allows company to expand the system
Intranets & Extranets: Introduction
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APPLICATIONS
• Human Resources– Employee handbook– Benefits information– Employee surveys– Internal/external recruiting– Candidate screening– Organizational charts– Newsletters– Company calendars
Intranets & Extranets: Introduction
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APPLICATIONS (Cont’d)
• Sales & Marketing– Product information– Market research– Prospecting– Managing sales contact– Sales training
Intranets & Extranets: Introduction
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APPLICATIONS (Cont’d)
• Accounting & Finance– Financial reports– Expense reports– Accounts receivable/payable processing– Asset management– Policies & procedures– payroll
Intranets & Extranets: Introduction
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APPLICATIONS (Cont’d)
• Manufacturing & Operations– Inventory control– Production schedules– Quality assurance– Part order/requisition system
Intranets & Extranets: Introduction
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WHY AN INTRANET?
• A company has a large pool of information to share among hundreds of its employees
• Intranets are cheap, robust & fast
• Intranets operate across platforms
• 24/7 to employees
• Information in intranet can be updated quickly
Intranets & Extranets: Introduction
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TECHNICAL INFRASTRUCTURE
• Client/Server Basis– Client/Server software architecture: a versatile,
message-based, and modular infrastructure intended to improve usability, flexibility, interoperability & scalability
– Mainframe architecture: all intelligence is within the central host computer
Intranets & Extranets: Technical Infrastructure
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TYPES OF CLIENT/SERVER ARCHITECTURE
• Two-tier architectures– For an organization with 12-100 users
• Three-tier architectures– User system interface– Processing management– Database management
Intranets & Extranets: Technical Infrastructure
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TWO-TIER ARCHITECTURE DESIGN
Intranets & Extranets: Technical Infrastructure
User System Interface
Database Management
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THREE-TIER ARCHITECTURE DESIGN
Intranets & Extranets: Technical Infrastructure
User System Interface
Database Management
Process Management
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BASIC INTRANET ENABLING TECHNOLOGIES
• Server & Client PCs
• Web Server
• Browsers
• TCP/IP Electronic Mail
• Graphic & Multimedia Files
• Network File System (NFS)
• Internet Relay Chat (NRC)
• HTML Authoring Tools
• HTML
• Portable Electronic Document
Intranets & Extranets: Technical Infrastructure
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USING FIREWALLS
• Proxy– ‘Go-between’ agent that acts on behalf of
another
• Packet Filter– Checks each packet at network level
Intranets & Extranets: Technical Infrastructure
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PLANNING AN INTRANET
• Plan ahead
• Provide justification with management support
• Build an intranet in-house or outsource it
• Form an intranet team
• Build & test a prototype
• Ensure effective maintenance
Intranets & Extranets: Planning an Intranet
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18WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
E-MAIL & INTRANET
• Spamming– Sending unwanted advertisements or literature
through e-mail
• Flaming– Responding to a message or a call in anger
Intranets & Extranets: Email & Intranet
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E-MAIL ETIQUETTE
• Write in different color to express attitude or mood
• Keep sentences short
• Be aware of your office & organization culture
• Avoid flaming
• Don’t use e-mail to send bad news
• Don’t type in capital letters
Intranets & Extranets: Email & Infrastructure
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EXTRANETS
• Allows limited, controlled business partners to interact with the firm for all kinds of exchanges
• System designers must collaborate to make sure there is a common interface with the company they are dealing with
• Benefits: faster time-to-market, customer loyalty, increased partner interaction, & improved processes
Intranets & Extranets: Extranets
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KEY CONSIDERATIONS
• Identifying users
• Listing technology components
• Specifying security requirements
• Discussing administration of extranet
• Understanding usability of extranet
Intranets & Extranets: Extranets
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OTHER CONSIDERATIONS
• Security– Type of users– Sensitivity of information transacted– Communication lines used
• Manageability / administration
• Usability
Intranets & Extranets: Extranets
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ROLE OF CHAMPION
• Ensures accountability for the organization
• Promotes more effective collaboration with business partners which improves potential for increased revenue
• Provides a long-term investment in competitive advantage
Intranets & Extranets: Extranets
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WWWWWW
Chapter 14
Intranets & Extranets