Navigate data

Document tree

Document tree is a widget that enables quick overview of the application's document hierarchy. Each document is shown as a node in the tree; container documents can be expanded to reveal the children documents.

The widget can be accessed by sliding the mouse to the left edge of the screen (on responsive layouts, it is always visible).

Class tree

In addition to navigating by document hierarchy, LinkedDataHub provides class-based navigation through the class tree widget. The class tree displays all classes from your application's ontology, organized by their inheritance relationships (rdfs:subClassOf).

Using class-based navigation

1. Open the left sidebar (slide mouse to left edge on desktop, or it's always visible on responsive layouts)
2. Switch to the class tree view (if not already showing)
3. Browse the class hierarchy — classes are organized by their subclass relationships
4. Click on any class to view all instances of that class in your dataspace
5. Expand parent classes to see their subclasses

When to use class navigation

Class-based navigation is most useful when:

• Finding all instances of a type: Quickly locate all resources of a particular class, regardless of where they're stored in the document hierarchy
• Exploring domain concepts: Browse your data organized by business concepts (e.g., all Customers, all Orders) rather than by container structure
• Working with rich ontologies: Navigate through complex class hierarchies to understand and access your data model
• Cross-container queries: View instances that span multiple containers in a single unified view

The class tree respects your access control settings — you'll only see classes you're authorized to view, and only instances you have permission to access.

Backlinks

Backlinks are shown in the right-side navigation for every resource in property layout mode. They display a list of resources which have properties with the current resource as the object.