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Transcript of ELC 200 Day 5, 6 (Quiz Day) & 7. Awad –Electronic Commerce 2/e © 2004 Pearson Prentice Hall 2...
![Page 1: ELC 200 Day 5, 6 (Quiz Day) & 7. Awad –Electronic Commerce 2/e © 2004 Pearson Prentice Hall 2 Agenda Assignment #2 due next class Quiz # 1 on Jan 28 –Chap.](https://reader035.fdocuments.us/reader035/viewer/2022062408/56649ef65503460f94c0a650/html5/thumbnails/1.jpg)
WWWWWW
ELC 200
Day 5, 6 (Quiz Day) & 7
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2WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Agenda
• Assignment #2 due next class• Quiz # 1 on Jan 28
– Chap 1-3 of text– 15 M/C (60 Points), 4 Short Essay (40 Points)– Open book, open notes
• Today we will finish discussion on Designing Networks and begin a discussion on Intranets and Extranet
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3WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Factors in Designing a Network
• Location
• Capacity
• Distance limitations
• Cost
• Potential growth
• Security
Internet Architecture: Factors in Designing a Network
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4WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Factors in Selecting Network Architecture
• Hardware requirements
• Software requirements
• Disaster recovery & fault-tolerance requirements
• Corporate culture and organizational factors
Internet Architecture: Factors in Designing a Network
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5WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Network Management System
• Manager
• Managed Nodes
• Objects
• Management Information Base (MIB)– http://www.simpleweb.org/ietf/mibs/
• Requests & responses
• http://www.somix.com/
Internet Architecture: Network Management System
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6WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Network Management Based on SNMP
ManagementInformationBase (MIB)
ManagementInformationBase (MIB)
ManagementInformationBase (MIB)
Network ManagementSoftware (Manager)
Simple NetworkManagement Protocol (SNMP)
RMON Probe
Command (Get, Set, etc.)
Response
Trap
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7WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Large-Scale E-commerce Issues
• Financial exposure
• IP exposure
• Legal security
• Packet sniffing
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8WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Ensuring Corporate and Information Security
• Firewalls
• IPSec
• Intrusion detection systems• http://www.schneier.com/
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9WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Management Implications
• High demand for Technical talent– Project Management – Business Knowledge – Communication Skills– High Salaries – Fastest Growing
• Retaining Talent– Constructive & Timely Feedback– Recognition & Appreciation– Championing Staff Causes– Support Employee Career goals– Match Industry Standards for Salary
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WWWWWW
Chapter 4
Intranets and Extranets
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11WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
OBJECTIVES
• Introduction
• Technical Infrastructure
• Planning an Intranet
• E-mail and Intranet
• Extranets
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12WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
WHAT IS AN INTRANET?
• An organization-wide software and 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
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13WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
BENEFITS• Links employees and managers together• Automates a lot of intra-organizational
traffic• Enables a company to gain better access to
its primary resources – knowledge and experience
• Serves as a creative and empowering tool• Establishes the foundation for developing
enterprise-wide information systems
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14WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
BENEFITS (Cont’d)
• Provides a model for new internal information management & collaborative computing
• Prepares a wealth of Internet knowledge to employees
• Eases process integration
• Allows company to expand the system
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15WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
APPLICATIONS
• Human Resources– Employee handbook
– Benefits information
– Employee surveys
– Internal/external recruiting
– Candidate screening
– Organizational charts
– Newsletters
– Company calendars • Vacation schedules
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16WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
APPLICATIONS (Cont’d)
• Sales and Marketing– Product information– Market research– Prospecting– Managing sales contacts– Sales training
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17WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
APPLICATIONS (Cont’d)
• Accounting and Finance– Financial reports– Expense reports– Accounts receivable/payable processing– Asset management– Policies and procedures– Payroll
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18WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
APPLICATIONS (Cont’d)
• Manufacturing and Operations– Inventory control– Production schedules– Quality assurance– Part order/requisition system
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WWWWWW
ELC 200
Day 6
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20WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Bribe List
• 1947 HD FLH “knucklehead”• 2005 Ford Harley-Davidson™ F-350 Super Duty • Audi LeMans (any year)• Redneck Engineering Chopper
– “curves frame”
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21WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Agenda
• Assignment #2 due• Quiz # 1 Today
– Chap 1-3 of text– 15 M/C (60 Points), 4 Short Essay (40 Points)– Open book 60 min– You can leave when have completed the quiz– Good luck
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WWWWWW
ELC 200
Day 7
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23WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Agenda
• Quiz #1 Graded– 7 A’s, 9 B’s, 2 C’s and 1 D– Answers were all straight out of the book
• Assignment #2 Graded– 9 A’s, 1 B, 2 C’s, 1 D, 2 F’s and 4 non-submits– Those Zeros for not turning assignments will really
screw up your average
• Assignment #3 assigned today• Today finish up on Intranets and Extranets
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24WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
WHY DOES A COMPANY NEED AN INTRANET?
• A company has a large pool of information to share among hundreds of its employees– Break point is ~ 100
• Intranets are cheap (relatively), robust and fast• Intranets operate across platforms
– UNIX, Windows, Mac
• 24/7 to employees• Information in intranet can be updated quickly and
uniformly
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25WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
TECHNICAL INFRASTRUCTURE
• Client/Server Basis– Client/Server software architecture
• Versatile
• Message-based
• Modular infrastructure intended to improve usability
• Flexibility
• Interoperability
• Scalability
– Mainframe architecture • all intelligence is within the central host computer
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26WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
TYPES OF CLIENT/SERVER ARCHITECTURE
• Two-tier architectures– For an organization with 12-100 users– Clients -- Servers
• Three-tier architectures– User system interface– Processing management– Database management– Clients – Processors – Servers
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27WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
TWO-TIER ARCHITECTURE DESIGN
User System Interface
Database Management
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28WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
THREE-TIER ARCHITECTURE DESIGN
User System Interface
Database Management
Process Management
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29WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
BASIC INTRANET-ENABLING TECHNOLOGIES
• Server and Client PCs
• Web Server
• Browsers
• TCP/IP based Electronic Mail
• Graphic and Multimedia Files
• Network File System (NFS)
• Internet Relay Chat (IRC)
• HTML Authoring Tools
• HTML
• Portable Electronic Document (PDF)
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30WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
USING FIREWALLS
• Proxy– “Go-between” agent that acts on behalf of
another
• Packet Filter– Checks each packet at network level
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31WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Application (Proxy) Firewall
SMTP(E-Mail)Proxy
FTPProxy
Application Firewall
HTTPProxy
Browser WebserverApplication
1. HTTP Request
Client PC Webserver
2.InspectRequestMessage
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32WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Figure 9.7: Application (Proxy) Firewall
SMTP(E-Mail)Proxy
FTPProxy
Application Firewall
3. ExaminedHTTP Request
HTTPProxy
Browser WebserverApplication
Client PC Webserver
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33WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Figure 9.7: Application (Proxy) Firewall
SMTP(E-Mail)Proxy
FTPProxy
Application Firewall
HTTPProxy
Browser WebserverApplication
4. HTTPResponse
Client PC Webserver
5.Inspect
ResponseMessage
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34WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Figure 9.7: Application (Proxy) Firewall
SMTP(E-Mail)Proxy
FTPProxy
Application Firewall
HTTPProxy
Browser WebserverApplication
6. ExaminedHTTP Response
Client PC Webserver
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35WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Packet Filter Firewall
PacketFilter
Firewall
IP-H
IP-H
TCP-H
UDP-H Application Message
Application Message
IP-H ICMP Message
Arriving Packets
Permit
Deny
Corporate Network The Internet
Examines Packets in IsolationFast but Misses Some Attacks
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36WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
PLANNING AN INTRANET
• Plan ahead• Provide justification with management support
– Without management support you have little to no chance of success
• Build an intranet in-house or outsource it• Form an Intranet team
– Advisory and Oversight (CYA)
• Build and test a prototype• Ensure effective maintenance
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37WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
E-MAIL and INTRANET
• Spamming– Sending unwanted advertisements or literature
through e-mail
• Flaming– Responding to a message or a call in anger
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38WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
E-MAIL ETIQUETTE
• Write in different color to express attitude or mood
• Keep sentences short• Be aware of your office and organization culture• Avoid FLAMING• Don’t use e-mail to send bad news• Don’t type in capital letters
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39WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
EXTRANETS
• Lets limited, controlled business partners 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, and improved processes
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40WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
KEY CONSIDERATIONS
• Identifying users
• Listing technology components
• Specifying security requirements
• Discussing administration of extranet
• Understanding usability of extranet
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41WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
OTHER CONSIDERATIONS
• Security– Type of users– Sensitivity of information transacted– Communication lines used
• Manageability / administration
• Usability
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42WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
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
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43WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
eCommerce Framework
• Instead of a Final Exam ELC 200 has a capstone experience project– 18% of your final grade
• Ties in everything you learned in the course from a applied perspective.
• The final project is an E-Commerce Initiative framework – mini-business plan– Mostly its a proof of concepts– Used in business to develop funding opportunities
• Parts– Paper – due last week of class– Presentation – due last week of class
• Guidelines posted in WebCT and handed out in class
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44WWWWWW Awad –Electronic Commerce 2/e© 2004 Pearson Prentice Hall
Assignment # 3
• On page 129 and 130 – Do the following questions from the Discussion
Questions Section– 1, 2, 3 & 7
• On Page 157 – Do the following questions from the Discussion
Questions Section– 1, 2, 4, & 6
• Turn in a well formatted Word Document• Due Feb 8 at the beginning of class