Читать книгу Blockchain Data Analytics For Dummies - Michael G. Solomon - Страница 84

After you have a catalog of the data available to you, rank each data item’s importance by its effect. A data item has greater effect when it corresponds to some entity attribute or action in the real world. Data that represents a letter of credit’s approval status change is likely more important than the field that records the page count of the letter of credit document. All data is not equal. It is always up to you, the analyst, to focus on the important data and not spend too much time on data with little value. Properly ranking data value by its effect is a learned skill, and one that takes practice.