Electronic government affair platform system architecture based on cloud calculation

The invention provides an e-government affair platform system architecture based on cloud calculation, which adopts a layered design and is divided into four layers: an IAAS layer, a PAAS layer, a DASS layer and an SASS layer, wherein the IAAS layer, the PAAS layer, the DASS layer and the SASS layer are sequentially arranged from bottom to top, and the IAAS layer is deployed in a big data center and used for supporting deployment of a cloud system by utilizing existing cloud calculation, cloud storage and cloud cache; the PSSS layer is used for supervising related data collection, storage andcalculation by adopting a big data technology bearing platform and providing support for mass data storage; the DAAS layer is used for guaranteeing data resources of the platform; and the SAAS layer is used for providing a service application and realizing service management. The overall architecture design of the system adopts a layered design thought, cloud calculation and big data technologiesare adopted, a heterogeneo