For a systems development method to be categorized as theoretical, it must conform to this definition.

如果哪个系统开发方法要被归为理论的，它必须满足这个定义。

youdao

For a systems development method to be categorized as theoretical, it must conform to this definition.

如果哪个系统开发方法要被归为理论的，它必须满足这个定义。

youdao