The framework uses the MVC design pattern, the primary goal of which is to separate the data and presentation layers of a software application.
此框架使用的是 MVC 设计模式，其最主要的目的是分离一个软件应用程序的数据层和表示层。
2
In particular, the goal of object system design is to partition the system state to meet the same goals of maintainability and extendibility faced in software design.
特别是，对象系统设计的目标是分割系统状态，从而达到软件设计中面临的同样的可维护性和可扩展性的目标。
3
Creating a good partitioning of the software state space is a key goal of object design.