What is Content Fragments vs. Experience Fragments?

You're asking about two powerful features in AEM that help you manage and deliver content efficiently. Here's a breakdown of Content Fragments vs. Experience Fragments:

Content Fragments:

Structured Content: Content Fragments are pieces of content, primarily text and associated media, that are structured using a Content Fragment Model. This model defines the types of content elements (like headings, paragraphs, images) and their order.
Content-Focused: They are purely content-driven, without any design or layout. Think of them as raw content that can be adapted and presented in different ways.
Reusable and Adaptable: Content Fragments are designed for reuse across multiple channels and platforms. You can have variations of a Content Fragment for different purposes or audiences.
Headless CMS: They are ideal for headless CMS implementations where you deliver content through APIs to various front-end applications.

Experience Fragments:

Complete Experiences: Experience Fragments are pre-designed sections of a web page that include both content and layout. They are built using AEM components and templates.
Presentation-Focused: They are designed to deliver a specific visual experience. Think of them as ready-to-use pieces of a webpage, like a header, footer, or a promotional banner.
Consistent and Efficient: Experience Fragments ensure consistency in design and layout across your website. They can be easily reused and updated, saving time and effort.
Multi-Channel Delivery: They can be delivered to various channels, including web pages, mobile apps, and even social media.

Key Differences:

Feature	Content Fragments	Experience Fragments
Focus	Content (the "what")	Presentation (the "how")
Structure	Structured data using Content Fragment Models	Pre-designed sections using AEM components
Design/Layout	No design or layout	Includes design and layout
Reusability	Highly reusable and adaptable	Reusable for consistent experiences
Delivery	Ideal for headless CMS via APIs	Delivered to various channels

Think of it this way:

Content Fragments are like the ingredients: You have different pieces of content (text, images) that you can combine and arrange in various ways.
Experience Fragments are like pre-made dishes: They are complete sections with a specific layout and design, ready to be served.

When to use which:

Content Fragments: Use them when you need to manage and deliver structured content that can be used flexibly across different platforms and channels.
Experience Fragments: Use them when you want to create consistent and reusable sections of your website with a specific design and layout.