求翻译：数据源可以是数据库、继承系统(legacy system)，web数据源等。这种集成方式本身并不存储任何实际数据。中介系统中的数据源是完全自治的，可以容易地增加删除数据源。是什么意思？

Data sources can be databases, legacy systems (legacy system), web data sources. This integrated approach itself does not store any actual data. Intermediary system is completely autonomous data sources, you can easily add delete data sources.

正在翻译，请等待...

The data pool may be the database, the inheritance system (legacy system), web data pool and so on.This kind of integrated way itself does not save any actual data.In the intermediary system data pool is completely autonomous, may increase the deletion data pool easily.

The data source can be a database, inheritance systems (legacy system), Web data sources. This integrated approach itself does not store any actual data. Intermediary system in the data source is completely autonomous, you can easily increase to delete a data source.

The data pool may be the database, the inheritance system (legacy system), web data pool and so on.This kind of integrated way itself does not save any actual data.In the intermediary system data pool is completely autonomous, may increase the deletion data pool easily.