Mind maps, Topic maps, etc.

General
Formats specific to the storage and transmission of mind maps, topic maps and other diagrammatic creativity aids. For the structure of organic brains, see Brain. The Amazon TV series Upload showed memories taken from the human mind being stored as files with a .mem extension which were playable like videos, while the Harry Potter series had its pensieve to replay magically-extracted memories, but real life doesn't yet have such capabilities; these formats will have to do.

Concept maps

 * cdd (ConceptDraw file)
 * cdx (XML for ConceptDraw)
 * cmap (CMap Tools file format)

Mind maps

 * BrainMine (.bmf)
 * Mind Manager formats
 * MindNode format
 * mm (Freemind format, used by some other software as well)
 * nmind (NovaMind file format)
 * SmartDraw

Outlines

 * OPML (Outline Processor Markup Language)
 * XOXO (Extensible Open XHTML Outlines; Microformats)

Topic maps

 * AsTMa* (Set of notations for topic maps)
 * DITA (Darwin Information Typing Architecture)
 * GTM (Graphical topic map notation, defined in ISO 13250-7)
 * LTM (Linear topic map notation)
 * XFN (The XHTML Friends Network; Microformats)
 * XTM (XML serialisation of topic maps)

Links

 * What are mindfiles?