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Ecommerce terms

5 ecommerce terms, defined plainly and cross-referenced.

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BigCommerceEcommerceBigCommerce is an open SaaS ecommerce platform built for mid-market and enterprise businesses. Unlike Shopify, it charges zero transaction fees on any payment gateway and offers stronger native B2B features, making it a strong choice for stores with complex catalogs, wholesale operations, or custom checkout requirements.

Composable CommerceEcommerceComposable Commerce is an architectural approach where you assemble best-of-breed commerce components (storefront, search, payments, CMS, personalization) rather than using a single monolithic platform. Each component is independently deployed, scaled, and updated, connected via APIs. It is the practical application of MACH Architecture principles to ecommerce.

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Headless CommerceEcommerceHeadless Commerce decouples the frontend storefront from the backend ecommerce engine. The backend (products, cart, checkout, payments, inventory) runs on a platform like Shopify Plus or BigCommerce, while the frontend is built with a custom framework like Next.js or Remix. This gives brands full control over the shopping experience without platform limitations.

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ShopifyEcommerceShopify is a SaaS ecommerce platform that lets businesses build and run online stores. It handles hosting, payments, inventory, and shipping out of the box. Shopify powers roughly 4.8% of all websites and over 20% of online stores globally.

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WooCommerceEcommerceWooCommerce is a free, open-source ecommerce plugin for WordPress. It transforms any WordPress site into a fully functional online store. It powers a significant portion of online stores, making it the most popular ecommerce platform by market share when including WordPress-based stores.

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# Ecommerce glossary terms

5 ecommerce terms from the Atomic Glue web glossary.

[BigCommerce](atomicglue.co/glossary/bigcommerce) — BigCommerce is an open SaaS ecommerce platform built for mid-market and enterprise businesses. Unlike Shopify, it charges zero transaction fees on any payment gateway and offers stronger native B2B features, making it a strong choice for stores with complex catalogs, wholesale operations, or custom checkout requirements.
[Composable Commerce](atomicglue.co/glossary/composable-commerce) — Composable Commerce is an architectural approach where you assemble best-of-breed commerce components (storefront, search, payments, CMS, personalization) rather than using a single monolithic platform. Each component is independently deployed, scaled, and updated, connected via APIs. It is the practical application of MACH Architecture principles to ecommerce.
[Headless Commerce](atomicglue.co/glossary/headless-commerce) — Headless Commerce decouples the frontend storefront from the backend ecommerce engine. The backend (products, cart, checkout, payments, inventory) runs on a platform like Shopify Plus or BigCommerce, while the frontend is built with a custom framework like Next.js or Remix. This gives brands full control over the shopping experience without platform limitations.
[Shopify](atomicglue.co/glossary/shopify) — Shopify is a SaaS ecommerce platform that lets businesses build and run online stores. It handles hosting, payments, inventory, and shipping out of the box. Shopify powers roughly 4.8% of all websites and over 20% of online stores globally.
[WooCommerce](atomicglue.co/glossary/woocommerce) — WooCommerce is a free, open-source ecommerce plugin for WordPress. It transforms any WordPress site into a fully functional online store. It powers a significant portion of online stores, making it the most popular ecommerce platform by market share when including WordPress-based stores.