Diagram. A diagram is a two-dimensional geometric symbolic representation of information according to some visualization technique.
Sometimes, the technique uses a three-dimensional visualization which is then projected onto the two-dimensional surface. The word graph is sometimes used as a synonym for diagram. Overview[edit] The term diagram in common sense can have a general or specific meaning: Eric Berlow: Simplifying complexity. Table and node-link diagram. The Links That Bind Us: Network Visualizations. Network data is everywhere.
From roads and supply chains to biological pathways and the internet, any items that share a common relationship can form a network. And node-link diagrams are an intuitive and commonly-used visual representation of networks. Tree structure. A tree structure showing the possible hierarchical organization of an encyclopedia.
The original Encyclopédie used a tree diagram to show the way in which its subjects were ordered. A tree structure is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree, even though the chart is generally upside down compared to an actual tree, with the "root" at the top and the "leaves" at the bottom. Terminology and properties[edit] The names of relationships between nodes are modeled after family relations.