So the development is under the principle that there must be a user interface that looks friendly, can learn to use quickly and can be displayed using the metric values during calculation.
Therefore, development is under that principle. To interface with the user. The look friendly Can learn to use it quickly. And can display the metrics used during the calculation.
Therefore, the development of it under the principle that Need to have contact with the user. Look friendly, can learn to operate quickly. And can show the metric used during calculation.