Source code reading for business systems

"Business System development Model" is my summary of business system development. This paper summarizes the source code reading method of the business system.

the source code of the business system reads:
1. The code organization structure of the project: according to the Business module division, according to the Component module Division;
2. Read the project configuration file, you can get some important information of the system;
3. Understand and familiarize yourself with the technology and framework used in the project;
4. Familiar with the database design of the system: database is the key map of application system;
5. Be familiar with the key concepts and operational entities of the system;
6. Clarify business entities and associations, build business model Diagram, constraint relationship diagram;
7. Start with important business operations, business code related to the project involved.

take the data design and data flow of the business system as the guidance to understand the technology realization means;

based on business entity, Entity attribute and Entity Association constraint, the technical realization means is auxiliary, and the understanding of business system is constructed.

data is at the heart of the business system. Rules are the extension of business systems. The Data + rules form the overall view of the business system.

The main technology is Data architecture design, concurrency control, transaction management and system middleware.

Source code reading for business systems