Practical explanation:
In an e-commerce setup, users can browse products or offers, compare options, add items to a cart, and pay online without direct contact with a seller. E-commerce can cover physical products, digital goods, subscriptions, and services, often supported by automated payment and order systems.

How it’s used in practice:
E-commerce is used by businesses of all sizes, from small independent shops to large international platforms. A typical e-commerce system includes product pages, checkout processes, payment integrations, delivery or access methods, and customer support.
Why it matters:
E-commerce makes it possible to sell at any time and reach customers regardless of location. It also provides valuable data about user behavior, sales performance, and customer preferences, which can be used to improve marketing and operations.
When to use it:
E-commerce is relevant whenever a business wants to sell products or services online and handle transactions digitally.
Related terms:
Online Store, Conversion Rate, Payment Gateway, Digital Marketing