The core parts of this equation are described as followed:
‘y’ represents the desired outcome, result or goal you want to achieve.
‘x’ represents the input, factors, variables or elements required to create the outcome.
‘f’ represents the function or process applied to the variables, by which they are modified, changed or altered – the transformation processor.
‘Ɛ’ represents some level of error or the amount of difference due to uncertainty or predictability when the process is applied and how near or far it is from the desired outcome.