In the systems methodology, a model is created and tested, then changed iteratively, with the expectation of each subsequent model being better than the previous. Systems Methodology: 1) model system flow 2) analyse system flow (quantify) 3) propose possible/feasible changes 4) create new model 5) imlement model 6) goto step 2 In artificial intelligence, a model is generated, then trained against a dataset. It is then tested independently against a new data set, and the accuracy is recorded. Artificial intelligence: 1) model generation 2) training 3) test against trained data/model 4) record accuracy