This document provides an overview of e-commerce presented by Megha Gupta. It begins with defining e-commerce as reducing costs and improving goods/services while increasing delivery speed. It then outlines the main topics to be covered which include the features, models, payment and security systems of e-commerce. Diagrams are provided to illustrate how different e-commerce models like B2B, B2C, C2C work. The advantages of e-commerce to organizations, consumers and society are mentioned. Payment methods covered include credit cards, debit cards, and electronic funds transfer. Security measures outlined are confidentiality, integrity, availability, authenticity and non-repudiation. EDI (electronic data exchange) is

1. E-Commerce
MEGHA GUPTA
ASSISTANT PROFESSOR
ADVANCED EDUCATIONAL INSTITUTE
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2. Flow of Lesson
1. Introduction of E-commerce
2. Features of E-commerce
3. Traditional Commerce v/s E-Commerce
4.Advantages of E-commerce
5.Disadvantages of E-commerce
6.E-commerce Business models
7. E-commerce Payment System
8.E-commerce Security System
9. E-commerce EDI
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3. Introduction of the E-Commerce
E-Commerce or Electronics Commerce is a methodology of modern business which addresses
the need of business organizations, vendors and customers to reduce cost and improve the
quality of goods and services while increasing the speed of delivery
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4. Diagrammatic
View
This is how E-Commerce works
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5. Features of the E-Commerce
•Non-Cash Payment
•24x7 Service availability
•Advertising / Marketing
•Improved Sales
•Support
•Inventory Management
•Communication improvement
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6. Traditional Commerce v/s E-Commerce
TRADITIONAL COMMERCE
1.Heavy dependency on information exchange
from person to person.
2. Communication/ transaction are done in
synchronous way. Manual intervention is
required for each communication or
transaction.
3. It is difficult to establish and maintain
standard practices in traditional commerce.
4. Communications of business depends upon
individual skills.
E-COMMERCE
1.Information sharing is made easy via
electronic communication channels making
little dependency on person to person
information exchange.
2. Communication or transaction can be done
in asynchronous way.
3. A uniform strategy can be easily established
and maintain in e-commerce.
4. In e-Commerce or Electronic Market, there
is no human intervention.
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7. E-Commerce - Advantages
• Advantages to Organizations
•Advantages to Consumers
•Advantages to Society
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8. E-Commerce Disadvantages
E-Commerce disadvantages can be broadly classified in two major categories:
•Technical disadvantages
•Non-Technical disadvantages
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9. E-Commerce Business Models
•Business - to - Business (B2B)
•Business - to - Consumer (B2C)
•Consumer - to - Consumer (C2C)
•Consumer - to - Business (C2B)
•Business - to - Government (B2G)
•Government - to - Business (G2B)
•Government - to - Citizen (G2C)
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10. Business - to -
Business (B2B)
This is how B2B works
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11. Business - to
Consumer
(B2C)
This is how B2C works
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12. Consumer - to -
Consumer
(C2C)
This is how C2C works
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13. Business - to –
Government
(B2G)
This is how B2G works
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14. E-Commerce Payment Systems
•Credit Card
•Debit Card
•Smart Card
•E-Money
•Electronic Fund Transfer
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15. E-Commerce Security Systems
Confidential − Information should not be accessible to unauthorized person. It should not be
intercepted during transmission.
Integrity − Information should not be altered during its transmission over the network.
Availability − Information should be available wherever and whenever requirement within time limit
specified.
Authenticity − There should be a mechanism to authenticate user before giving him/her access to
required information.
Non-Repudiabiity − It is protection against denial of order or denial of payment. Once a sender
sends a message, the sender should not able to deny sending the message. Similarly the recipient of
message should not be able to deny receipt.
Encryption − Information should be encrypted and decrypted only by authorized user.
Auditability − Data should be recorded in such a way that it can be audited for integrity
requirements.
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16. E-Commerce EDI
EDI stands for Electronic Data Exchange. EDI is an electronic way of transferring business
documents in an organization internally between its various departments or externally with
suppliers, customers or any subsidiaries etc. In EDI, paper documents are replaced with
electronic documents like word documents, spreadsheets etc.
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17. Diagrammatic
View
This is how EDI works
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18. EDI-Advantages
•Reduction in data entry errors
•Shorter processing life cycle
•Electronic form of data
•Reduction in paperwork
•Cost Effective
•Standard Means of communication
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19. Megha Gupta
Assistant Professor
Advanced Educational Institute
Advanced Educational Institutions,
70 km Milestone,
Delhi-Mathura Road, Dist. Palwal, Haryana-121105
+91–1275–398415
Megha_3100@yahoo.com
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