Summary of IDC charging system documents

It took a total of five days from October 1 to October 2 to write the documents of the "Data Center billing system" for the first time. I used my knowledge in software engineering to practice it.

The theory of software engineering is very boring, but it plays a very important role in guiding the production process of the system. This time, I spent nearly a week writing the "Data Center Charging System" document, and I have a new understanding of "data center Charging System", from the relationship between system functions, the relationship between database tables and between functions and tables is clearer than previously known. The reason for writing a document before getting started with the system is a little bit clear. The production of the system requires developers to complete the steps, so you cannot blindlyCodeWhen everything is ready, coding can only be implemented at 15% of the time of the project. Moreover, such software can withstand our maintenance and modification.

In the process of writing documents, the documents are completed by referring to the example given by the teacher and online materials. The examples are well written. Some of the things that need to be written do not understand what to write, and cannot be found from the Internet. The following summarizes the documents written at each stage and their functions.