Although not exactly a tree (i.e.: born from a root), a Genealogy Tree or Family Tree is an specialized graph of nodes depicting family lineage.
The next is an example made with ThinkComposer (click to enlarge):
Although not exactly a tree (i.e.: born from a root), a Genealogy Tree or Family Tree is an specialized graph of nodes depicting family lineage.
The next is an example made with ThinkComposer (click to enlarge):
Visual languages are based on certain common primitive elements for express the intended message, situtation or subject.
As far as I can see, the most used are…
Next, an overview of some common practices and techniques for knowledge transfer: Visual Languages.
Concept Maps: Based on a question (e.g.: “what caused the 2008 financial crisis?”), depicts general knowledge about that topic using concepts and their relationships on a free graph layout.
Mind Maps: Organizes ideas and knowledge around a central topic on a radial (centered hierarchy) graph layout. They commonly uses various colors, images and curved lines for easy memorization.
Entity-Relationship diagrams: On a business domain, depicts entities and thir relationship from a data modeling perspective.
Flowcharts: Depicts the logical steps for performing a task, considering processes, decisions, inputs, outputs, storing and their flow.
Unified Modeling Language: A complex language for general modeling, mostly used on computer science related projects. It has various types of diagrams. The most popular are:
Electronic Diagrams: Shows electronic components and their arrange on a circuit or board.
Chemical Diagrams: Shows the structural formula of chemical compounds at molecular level.
Military Plan: Shows the planification for war movements. It considers direction, timing, type and strength of forces in the theater of operations.
Maybe, for any human knowledge area, there are a visual language developed. Plus consider that many organizations have developed their own visual languages, and they are changing over time and evolve following the development on their industries or even creating new ones (e.g.: nanotech, genetic engineering). Such particular well focused dialects are called Domain Specific Languages.