Terms in Graph Data and Tree Data

Graph is the generalized version of tree, and tree is the special case in graph. Terms in graph and tree are different too, to avoid confusion.

Graph:

• No root: Starting of navigation can be from any node
• Current node: Is the present point of navigation
• Next nodes: Are the next points of navigation
• Terminus nodes: Are the points with no nexts

Tree:

• Root: Starting point of navigation
• Parent: Node with children
• Child nodes: Branches from parent node
• Leaf nodes: Nodes with parent but no children.

Terms in graph and tree are below, with the new invention of 'samepre' (same predecessor) term: