Fig. 1: Overall architecture of MGED.

The architecture of MGED consists of four main systems: DCS, DES, HDSS, and DSS. DCS is responsible for collecting original datasets from multiple data providers and normalizing them into standard container format. DES manages data mapping rules and performs data transformation among different formats. HDSS stores each category of data into the corresponding database. DSS provides various data services through the fundamental services framework and the service integration framework.