Categories of E commerce

Hi buddy I have come to get info about Categories of E commerce, so guys can you plz tell me how many types of Categories of E commerce

[Shaleen]

E-commerce refers to a wide range of online business activities for products and services, It is usually associated with buying and selling over the Internet, or conducting any transaction involving the transfer of ownership or rights to use goods or services through a computer-mediated network

As you asking I am telling there are various types of e-commerce platforms fall into several industry classifications based upon their licensing model, sales scenario and data exchange:

On-premises e-commerce
Advantages:
Easily customizable;
Data security;
High performance;

Disadvantages:
Large initial investment;
Self-maintenance;
Technical knowledge

Software as a service (SaaS) E-commerce
Advantages:
Affordable low-cost solution;
Hosted/upgraded by E-commerce provider;
Easily scalable

Disadvantages:
Limited integration with back-end systems;
Lack of data security;
Limited control over the system;

Open source E-commerce
Advantages:
Free of charge system;
Wide variety of available addons/plugins/extensions;
Better flexibility with a customizable source code;

Disadvantages:
More technical knowledge required;
Performance depends on hosting costs
No standard integration with back-end system;

Sales scenario
Business-to-Consumer (B2C)
Business-to-Business (B2B)
Consumer-to-Business (C2B)
Consumer-to-Consumer (C2C)

Integrated E-commerce
Interfaced E-commerce