Content Governance
Plone includes many advanced features not found in other CMS's that help large organisation control their content
Enforcing the design system
Inka encodes the design system as the blocks an editor can use and the rules that govern them. A page is composed from those blocks, so a page that steps outside the design system is not something an author has to be talked out of — it is not a page they can build.
Good design systems also say when and how each component should be used. Those rules are applied where the page is authored rather than written in a document read once: which blocks belong where, which combinations are allowed, and which choices need approval. Accessibility rules are checked the same way. Where a rule has to be set aside, the override is recorded rather than quietly applied. This site is Inka on Plone: Inka enforces the design system where the page is authored, and the permissions, workflow and versions below are Plone's. That split is why the same implementation travels: adapt Inka to whichever content management system you want through its adapter interface, and the components, the rules and the editing stay the same — it is the workflow described below that each one does its own way.
Fine Grained Permissions
Groups of users can be created and given delegated permissions to only certain parts of the site or even individual pages
How to: delegate permissions on a section.
Automations via Content Rules
Content Rules automate actions when certain conditions are met such as editing, logging in, workflow transition etc
How to: set up automations.
Custom Workflow
Plone's built in workflow is powerful, allowing content or subsections to be private, private to restricted groups, published or submitting for publication
How to: publish, review and roll back.
Underneath Plone's builtin workflow editor allows even more complex custom workflows to be created and used in different areas of the site, or for different content types
Multilingual
Plone is built with multilingual content in mind providing many options to structure a multilingual site
Versioning
Plone saves versions of all edits to compare or revert, and allows for multiple draft versions of a published page to be worked on and reviewed before becoming public