In June 2019, Capinfo won the bid for upgrading the Beijing citizen hotline “12345”. By making this hotline platform accessible to all street-level, township-level, district-level and municipal authorities and public service providers, this hotline platform directly allocates work orders from municipal platforms to streets, towns and rural areas while providing consulting services, offering suggestions and receiving complaints so that all people’s requests are accepted on this platform, where “all complaints are handled as soon as they are received” irrespective of the areas. Meanwhile, our smart data analysis system can give warnings and judge situations in real time in respect of hot issues and emergencies. It plays critical roles in “getting complaints handled as soon as they are received” all over Beijing, and offers powerful data support to all levels of governments to make scientific decisions. Guided by the construction of this hotline platform, we coordinated construction of Beijing district and street-level platforms for dealing with complaints upon receipt, to fully support creation of municipal, district and street-level models for “getting complaints handled as soon as they are received” responsively, exactly and efficiently, thus further improving effectiveness of data governance empowered by sciences and technologies.