The BMI is calculated using DiaFlux models, where first the "Height" and "Weight" is asked to the user. Then, the value of the abstraction "bmi" is derived, when values for the aforementioned questions are known. Final solutions are derived depending on the result of the calculated value of "bmi".
This simple knowledge base derives the body-mass-index (BMI) of a person based on the weight and height.
Please note that this is a simple example for demonstration uses!