AEM & Adobe
Custom components are the building blocks of any AEM implementation. This comprehensive guide covers modern best practices for creating maintainable, performant, and reusable AEM components in 2025.
Foundation: Core Components First
Before building custom components, always evaluate if AEM Core Components can meet your needs. They are production-ready, accessible, and regularly updated by Adobe.
Component Architecture
Use Sling Models for all component logic and HTL (Sightly) for templates. This provides clean separation of concerns and better performance.
Performance Optimization
Implement lazy loading, optimize client libraries, and use proper caching strategies at multiple levels.
"Start with Core Components, extend when necessary, build custom only when essential." - Priya Sharma
Testing & Quality
Write comprehensive unit tests for Sling Models and ensure WCAG 2.1 AA compliance for all components.
