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Transcript of Elc200day9
3-1
Elias M. Awad
Third Edition
ELECTRONIC COMMERCE
From Vision to Fulfillment
© 2007 Prentice-Hall, Inc
ELC 200 Day 9
3-2© 2007 Prentice-Hall, Inc
Agenda• Questions from last class?• Assignment 2 Corrected
– 12 A’s, 3 B’s, 2 C’s, and 1 non-submits • Assignment 3 Posted
– Due March 1 @ 12:35PM• Quiz 2 will be on March 8
– Chapter’s 4, 5, 6– 20 M/C @ 4 Points each – 4 short essays @ 5 Points each– 1 extra credit question for 5 Points– 50 mins, Open Book, Open Notes
• Possible Extra Credit questions– Where’s my name? – 1st dot com IPO– Who’s this guy? >>>
• Finish Discussion on Hosting your Web Site
3-3
Elias M. Awad
Third Edition
ELECTRONIC COMMERCE
From Vision to Fulfillment
© 2007 Prentice-Hall, Inc
Hosting Your Web Site
3-4© 2007 Prentice-Hall, Inc
The focus of this chapter is on several learning objectives• ISPs and the services they offer
• How to choose an ISP
• How to register a domain name
• Role of application service providers
• How to select an ASP to suit your needs
3-5© 2007 Prentice-Hall, Inc
Terms to Know
• Internet Service Provider (ISP) : company that connects customers with PCs and browsers to the Internet
• Virtual hosting : a company with its own domain name, hosted by an ISP to conduct business via the Internet
• Virtual domain : a company with its own domain name, hosted by an ISP to conduct business via the Internet
• Domain name : a company’s identifier in cyberspace
3-6© 2007 Prentice-Hall, Inc
Why Use an ISP?• Most client organizations are anxious to go on the Internet
without questioning the reliability of the ISP that can accommodate their Web site
• There is more to deciding on an ISP than price:– Technology– Staffing– Speed– Amount of congestion
• Resources to host your own Web site:– Hardware - A Web server, communication gear, and a
special router: $5,000 to $18,000 a year• http://www.dell.com/content/products/category.aspx/servers?c=us&cs=04&l=en&s=bsd&~ck=anavml
– Communications - Typically a T1 or fractional T1 line:
$8,000 to $12,000 per year• http://www.speakeasy.net/business/
– Staff - At least a Webmaster, a Web designer, and a help desk: $45,000 to $80,000 per year
– Total - $58,000 to $110,000 per year
3-7© 2007 Prentice-Hall, Inc
The Infrastructure of an ISP Provider• Your company Web site has to be stored on a
Web server that is always connected to the Internet by a high-speed link
• An ISP should provide:– Standby electric power as backup to keep the site
available in the event of a blackout.
– Redundant fault-tolerant servers to ensure that your Web site will continue in the event of a hard drive or a server breaks down.
– Redundant communications lines to keep your site active in the event a phone line or a router goes down
– One or more firewalls to protect your Web site from hackers or unauthorized access.
3-9© 2007 Prentice-Hall, Inc
Types of Service Providers• Internet service provider (ISP) : a specialized
business that offers Internet access
• Applications service provider : offers packaged software for lease online
• Wireless application service provider (WASP) : a company that offers untethered applications; hosting, developing, and managing applications are similar to that of an ASP
• Business service provider (BSP) : and Internet service developer that rents only its own proprietary applications via the Web
• Whole service provider (WSP) : a service provider that packages a selection of BSP applications for distribution online
3-10© 2007 Prentice-Hall, Inc
Types of Web Hosting Services
• Web Hosting : providing, managing, and maintaining hardware, software, content integrity, security, and reliable high-speed Internet connections
• Four types of Web hosting services:– Dial-up access– Developer’s hosting
– Web hosting only
– Industrial-strength hosting
• http://www.top-10-web-hosting.com/?wcw=google
3-11© 2007 Prentice-Hall, Inc
From you to the ISP
• Winsock TCP/IP protocol stack on PC separates message into packets
• Packets converted to analog format by modem
• Analog signal sent over ordinary telephone line
• Receiving modem coverts from analog back to digital
• ISP sends from its computer to a dedicated connection to some bigger ISP
3-12© 2007 Prentice-Hall, Inc
The Backbone of the Internet
• Backbone: a cluster of competing companies called network service providers.
• Backbones a usually fiber optic trunk lines with extremely high bandwidths.
• Backbones connect major network nodes and allow smaller ISPs access to the internet
• One NSP (Sprint) backbone map of USA
3-17© 2007 Prentice-Hall, Inc
ISP Structure and Services
• ISPs connect to NSPs
• Two types of ISPs
– Facilities-based ISPs have significant start-up costs associated with hardware and software purchases and Internet access leases
– Virtual ISPs do not have any of these costs– Marketing and sales to generate new
customers• Residential customers• Commercial customers• Public customers
3-18© 2007 Prentice-Hall, Inc
ISP Services
• An ISP provides a variety of service - the expectations of any customer are for main services to include:
– Domain name server (DNS) : a repository where the domain name for each ISP is stored
– E-mail : the most commonly used service on the Internet
– Radius server : a network access server that authenticates a user’s ID and password and triggers accounting to complete the customer’s chargeable session
3-19© 2007 Prentice-Hall, Inc
ISP Optional Service
• World Wide Web server
• File transfer protocol (FTP)
• Internet relay chat (IRC) : a text-based chat service, where users connect to a local server as part of a larger network of IRC servers
• News Server
• HTTP proxy service• A minimum of two servers of each type are
needed to launch a start-up ISP
3-20© 2007 Prentice-Hall, Inc
Technical Services
• A T1 line is a digital carrier line that transmits digital signals at 1.544 Mbps
• A T3 line transmit digital signals at 44,736 Mbps
• Fiber-optic-based Internet :– OC-3 155.52 Mbps $12,000/month + carrier– OC-12 622.08 Mbps $30,000/month + carrier– OC-768 40 Gbps Don’t ask!
• A broadband connection on the Internet means many times the speed of the old dial-up service via modems
3-21© 2007 Prentice-Hall, Inc
Technical Services (Cont’d)
• Four types of broadband available for home access are:
– Cable modems– Digital subscriber line (DSL)
– Fiber-optic networks
– Wireless technology
3-23© 2007 Prentice-Hall, Inc
Major Consumer Problems with ISPs• Paying with a Debit Card
• Technical support that turns out not to be free
• Dialing a number to connect to the ISP that is not a local call– Long distance charges
• Trouble canceling an account
• Identity theft and the problems that ensue– Phake phree ISP’s
3-24© 2007 Prentice-Hall, Inc
Checking out an ISP
• Find someone with experience who’s been using the ISP for at least three months and ask how good they find the service
• Find out the number of users the ISP has in your area and the number of modems in use at the ISP
• Find out the pipe each ISP uses to the Internet
• What is the number of employees the ISP has and the range of service it offers?
3-25© 2007 Prentice-Hall, Inc
ISP Rating Sites
• http://reviews.cnet.com/ISP_buying_guide/4520-7606_7-728424-1.html
• http://www.webhostingratings.com/
• http://www.hostcompare.com/index.htm
• http://www.webhostinginspector.com/
3-26© 2007 Prentice-Hall, Inc
Trends
• Growing trend toward no-fee and cut-rate Internet services
– Microsoft’s Hotmail
– GMAIL from Google
– NetZero Inc., has close to 2 million registered users
• The business of free ISPs is uncertain
• ISPs generate brand loyalty through portal services
• Speed is what everyone wants
3-27© 2007 Prentice-Hall, Inc
Services to Expect From ISP
• Register you domain name
• Capture and forward your e-mail
• Host your Web site
• Provide technical and managerial support
• Give on-the-road support
3-28© 2007 Prentice-Hall, Inc
Importance of a Domain Name
• A URL should be easy to remember and should represent what the company is all about
– Make sure the domain name is officially in your name– Consider registering the following kinds of domain
names:• One or two close names• Unique product domain name• Ideal company domain name
• A URL has three major parts:
– http:// - Internet protocol– www.virginia.edu - The domain name– /schls.html - A subdirectory of the file
3-29© 2007 Prentice-Hall, Inc
Choosing a Domain Name
• List the possible domain names that fit your organization’s image, products, or services
• Ask friends, peers, employees, and others who use the Web
• Narrow the list to a few favorites
• You want to check for availability ( www.internic.net )
• If the name is not in active use, then proceed with domain name registration
3-30© 2007 Prentice-Hall, Inc
Legal Issues When Choosing Domain Names
• Determine if the proposed domain name infringes on trademarks
• Make sure the proposed domain name does not adversely affect any famous trademark
• Register as a federal trademark with the U.S. Patent and Trademark Office
• Register the proposed domain name with InterNic or Network Solutions (NSI)
• Look for expanded top-level domain names and registries
– .arts
– .firm– .info
– .nom
– .per and .nom– .rec
– .store
– .web
3-31© 2007 Prentice-Hall, Inc
Registering Your Domain Name
• Two ways to register:
– On your own– Through an ISP
• ISP charges about $50 for processing in addition to the registration fee
• Possible pitfalls:
– Overcharging– Domain name status– Backup– Contractual language
3-32© 2007 Prentice-Hall, Inc
Three FAQs About Domain Names• What is involved in registering a domain name
in .com, .net, or .org?
• How long does a registration last?
• Can the registrar be changed after registering a domain name?
3-33© 2007 Prentice-Hall, Inc
Definitions of Application Service Provider (ASP)• An organization that hosts software applications on its own
servers within its own facilities
• An Internet service provider that also sells application software that runs behind the Web servers at the hosting service
• Companies that sell, support, and manage applications that are hosted on the Internet on behalf of remote end users
• An extension of the ISP business offering Web-based applications as well as Internet access
3-34© 2007 Prentice-Hall, Inc
Services Offered by ASP
• Owns and operates a software application
• Owns, operates, and maintains the servers that run the application
• Employs the staff to maintain the application
• Makes the application available to customers everywhere via the Internet, normally in a browser
• Bills either on a per-use basis or on a monthly/annual fee basis. In many cases, the ASP can provide the service for free or even pay the customer.
3-35© 2007 Prentice-Hall, Inc
Benefits of ASP
• Outsourcing to an ASP lets the firm concentrate on its core competencies
• ASPs can keep their technical environment up-to-date
• Employ highly skilled and talented staff
• An ASP can cut monthly costs of application ownership
• Internet bandwidth shifts to the ASP
3-36© 2007 Prentice-Hall, Inc
Service Level Agreement
• Service Level Agreement (SLA): a contract between the user and the ASP vendor stating the vendor’s commitments to ensure reliable delivery of information.– Limits of liability – Example: Service goes out for one day in a month?
• Refund 1/30 of monthly fee of service?
• Shaking hands is not enough.
• Successful outsourcing of any application will require accountability, performance, and remediation to be spelled out and agreed upon by all parties.
3-37© 2007 Prentice-Hall, Inc
Chapter Summary
• Internet service providers (ISPs) are attractive to many companies for several reasons:– Specialized staff to manage Web sites
– High-speed connectivity to main Internet hubs
– Real physical security from power outages
– The latest technology
• ISPs can belong to one of three categories:– Large wholesale access provider
– Smaller Internet backbone provider
– Local ISP
3-38© 2007 Prentice-Hall, Inc
Chapter Summary (Cont’d)
• Hosting a Web site involves three major items: hardware, communications network and qualified staff.
• There are four types of service providers: ISPs, ASPs, BSPs, and WSPs.
• The backbone of the Internet is the group of network service providers that work together to provide total interconnection.
3-39© 2007 Prentice-Hall, Inc
Chapter Summary (Cont’d)
• Shopping for a Web-hosting ISP involves:– align bandwidth
– connection availability and performance
– virtual hosting
– number of e-mail addresses allowed per account
– ISP stability and staying power– Free local access– Customer service and technical support
– ISP reliability and cost of service
3-40© 2007 Prentice-Hall, Inc
Chapter Summary (Cont’d)
• For online marketing, an ISP should be capable of:– Registering your domain name
– Capturing and forwarding e-mail
– Hosting the Web site
– Technical and managerial support– On-the-road support
• Your domain name is the “house” for your Web site, e-mail, and other e-commerce transactions
• Wireless application service provider (WASP) handles untethered applications