The dominoes are the components in the system. In System Dynamics we call these components "Variables".
A variable must be capable of variation ie increasing and decreasing in value.
Usually formulated as nouns or noun-phrases
Need to be very specific....
Q: What variables can you see in this/your room?
Responses: No of chairs, No of people, (things they can see)
Q: What about the things we can't see?
Responses: Temperature, Quantity of Oxygen, Intensity of light etc
Observe that these are things that can be measured objectively by man made instruments.
Q: What about the things inside you?
Responses: Feelings, emotions, motivation
Observe that these have a massive impact on systems. They are the hidden variables which make the difference.
Q: What variables can you see in your simple map (from the morning session)? NB KT to see maps and identify some....