Features of hierarchical development

Advantages:

1. Scalability: Can more users be supported;

2. maintainability: reduce code coupling. When the requirement changes, only one part is affected and no other part is involved;

3. Scalability: the difficulty of developing new functions;

4. reusability: the code is not redundant and can meet various requirements;

5. manageable: ease of management system.

Disadvantages:

1. High requirements on the level of design personnel;

2. A clear system structure is required, which consumes time and effort during the design process;

3. Difficult debugging;

4. For small projects, hierarchical development reduces development efficiency.