A node is a sibling of another node when the two nodes share a parent node. A node can have multiple siblings. 

San Jose State University

University of Michigan - Ann Arbor

- Parent
- Child
- Ancestor
- Descendant
- Sibling

Types of Relationships Between Nodes in 1Cademy Knowledge Graph

A node is a parent of another node when it contains direct (immediate) prerequisite information that a user should understand to be able to learn the following node. A node can have multiple parents and can be a parent to multiple nodes. 

Parents of a Node on 1Cademy

A node is a child of another node when a user needs to know the information in the former node to learn the current node. A node can have multiple child nodes and can be a child of multiple nodes.

Children of a Node on 1Cademy

A node is an ancestor of another node when it contains indirect prerequisite information that a user should understand to be able to learn the parent nodes. For example, if node A is a parent of node B and node B is a parent of node C, then node A is an ancestor of node C. Any parents or ancestors of node A are also ancestors of node C.

Ancestors of a Node on 1Cademy

A node is a descendant of another node if the latter node contains indirect prerequisite information that is necessary for learning the content of the current node. For example, if node A is a child of node B and node B is a child of node C, then node A is a descendant of node C. Any children or descendants of node A are also descendants of node C.

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