Mental Concepts
Description	Non-physical (abstract) things that people think about, discuss, use to make decisions, and use to describe and manipulate information.
Possible Sub-Classes	Ideas, Issues, Problems, Solutions, Scientific Concepts, Mathematical Concepts, Diagrams, Knowledge Models.
Examples	Strategic Ideas, Lessons Learnt, Probability, Risk, Multiplication, Vector, Triangle, Risk Tree, Process Map, Equation.
Relationships	The possible relationships to other concepts are shown below:
Comments	Do not confuse Mental Concepts with Knowledge Areas (the latter are bigger) Only include something that is physical if the idea of it is being used (e.g. an explosion is a problem that has to be solved) Do not confuse Mental Concepts with Info Resources - a Mental Concept is a piece of information not where it is (e.g. it's the book's contents, not the book itself)
Example Relationships	Risk Probabilities – part of – Risk Tree Strategy Ideas – resource for – Decide Strategy Safety Issues – documented in – Risk Reports Vector Geometry – involves – Vectors Create Strategy Ideas – produces – Strategy Ideas