In the previous chapter, we saw a basic overview of how classic SharePoint environments are organized: site collections containing sites. A site collection is a security boundary and control plane, meaning that we can set limits at that level that control what types of things can be configured or enabled in the sites associated with that site collection.

In this chapter, we're going to look at the core planning and deployment components:

• Configuring site collections
• Planning and configuring navigation
• Designing site collection and subsite structure
• Configuring site collection settings and features

By the end of this chapter, you'll be able to articulate how you want to design your SharePoint Online site collection structure.