Simply put: The report is the presentation of the data.
Before there is no computer, people use paper and pen to record data, such as: the people often say that the tofu account is selling tofu every day, the sold bean corrups are sold on a book, and then counts the calculation per month. In this case, the report data and report format are together, they are on one basis. The data at this time can only have a form of expression, and this form is difficult to modify and transfer.
When the computer appears, people use computer processing data and interface design to generate, and present the report. The main feature of the report on the computer is data dynamism, format diversification, and realize full separation of report data and report format, and users can only modify data, or only modify formats.
