Suitable for any kind of data organization, such as Todo lists, calendars, project management, brainstorming, organizing ideas, planning, requirements gathering, presentation of information, etc.
It's like a spreadsheet, immediately familiar, but much more suitable for complex data because it's hierarchical.
- It's like a mind mapper, but more organized and compact.
- It's like an outliner, but in more than one dimension.
- It's like a text editor, but with structure.