Which type of items in Sitecore Helix should be minimized to avoid duplication?

Minimizing duplication of definition items in Sitecore Helix is important for maintaining a clean and efficient architecture. Definition items are typically used to store configuration and templating information that dictates how content items and renderings should behave and appear. They include standards like templates, renderings, and styles that are crucial for the Sitecore framework’s consistent functioning across different site sections.

Limiting the number of definition items avoids unnecessary complexity and redundancy. It streamlines project maintenance, as having a single source of truth for behaviors and configurations makes it easier to manage changes and ensures all parts of the solution can leverage standard definitions without discrepancies. Furthermore, this approach fosters better collaboration among developers, as everyone can rely on established definitions rather than creating duplicates that might lead to confusion and inconsistent implementations.

In contrast, rendering items, content items, and schemas serve specific purposes in Sitecore. Rendering items are often tailored to display specific content in particular ways and can be more varied. Content items hold actual site data, which is inherently diverse and not subject to minimization in the same way as definitions. Schemas provide structural definitions for data and can evolve independently based on different project requirements, making their redundancy less concerning. Thus, the focus on minimizing definition items is foundational in the Hel