Internet, Intranet, Extranet

Layered System View

Intranet Extranet Internet

Corporate members Clients, partners, customers Global society: competitors

What is Internet?

a worldwide system of computer networks a public, cooperative, and selfsustaining facility accessible to hundreds of millions of people worldwide use a set of protocols called Transmission Control Protocol/Internet Protocol (TCP/IP)

What is Intranet?

Networks connecting an affiliated set of clients Using standard Internet Protocols, especially TCP/IP and HTTP, and some FTP IP-based network of nodes behind a set of firewalls

What is Extranet?

part of a company's intranet that is extended to users outside the company securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses

How Does Intranet Work?Via LAN (Local Area Network) Via WAN (Wide Area Network) Via MAN (Metropolitan Area Network) which rely on ISDN (Integrated Services of Digital Network)

Establish an internal network

When TCP/IP protocols are set up, web servers & browsers can be installed to give access to the Intranet.

FASILITAS INTERNET

E-mail: person-to-person messaging Telnet: logon on into a remote computer (remote login) Chatting: interactive conversations WWW (World Wide Web): retrieve, format, & display information (text, audio, graphics, video) using hypertext links BBS (Bulletin Board System): discussion groups Archive: search database of documents, software WAIS: Locate files in databases using keywords

What Tools are in Intranet?

A decision-making tool A complete communication tool An experts tool A customer tool A human resource tool

Benefits of Intranet

Cost-effective communication in corporate Fostering actual/real interaction of knowledge Providing more flexibility in humans abilities to do jobs Promoting secure system of access & interaction Becoming corporate communication tools

Corporate can use Extranet for

Exchange large volumes of data using Electronic Data Interchange (EDI) or XML Share product catalogs exclusively with wholesalers or those "in the trade" Collaborate with other companies on joint development efforts Jointly develop and use training programs with other companies Provide or access services provided by one company to a group of other companies, such as an online banking application managed by one company on behalf of affiliated banks Share news of common interest exclusively with partner companies

Security for Intra- & Extra-net

require firewall server management, the issuance and use of digital certificates or similar means of user authentication, encryption of messages, and the use of virtual private networks (VPN) that tunnel through the public network.

Customer Relationship Management (CRM)

an information industry term for methodologies, software, and usually Internet capabilities that help an enterprise manage customer relationships in an organized and efficient manner an enterprise builds a database that describes relationships in sufficient detail so that management, salespeople, and customer service reps can access information; match customer needs with product plans and offerings; remind customers of service requirements; know what other products a customer had purchased; etc.

Supply chain management (SCM)

the oversight of materials, information, and finances as they move in a process from supplier to manufacturer to wholesaler to retailer to consumer involves coordinating and integrating these flows both within and among companies ultimate goal of any effective supply chain management system is to reduce inventory (with the assumption that products are available when needed) Related to Enterprise Resource Planning (ERP)

Three types of flows in SCM

The product flow The information flow The finances flow