The whole process follows the general step of structured systems analysis and design method, therefore the system was developed more scientifically and stability of the system was improved.

• 整个过程遵循结构化系统分析与设计方法(Structured Systems Analysis and Design，简称SSA &D)一般步骤，从而提高了系统开发设计的科学性和系统的稳定性。