A better design approach would be to expose chart creation with HTTP POST and JSON (for developers) and provide a graphical interface on top of it (for non-developers).
The pie chart is the core interface for sorting and evaluating applicants;
这个扇形图是分拣和评估申请者的核心界面。
3
Retrieves the data from the facade interface of the chart data service -- which could be an existing service or solution asset -- and is exposed by the RPC adapter.