A symbol in a structure diagram that represents an infinite source or sink. An origin or ending place of a flow that is outside the boundary of the system as modeled. A cloud represents an unrepresented input or output stock of the system that is inconsequential to the behavior of interest.
WIP October 2020
An approach to the Prof. Jay W. Forrester's work. A simple Learning Lab to understand his legacy.
WIP August 2020
Based on a CLD by Ghost Diving Korea - Jiyeon, an eLearning Lab created just for practice.