step S101: establishing, by a certification party, a general workflow template, the general workflow template comprising a plurality of workflow nodes each having an audit attribute for indicating whether the workflow node needs to be certified;

step S102: establishing, by the certification party, a general data template based on the general workflow template, the general data template defining data needing to be collected and transmitted in a workflow execution process;

step S103: instantiating the general data template and the general workflow template; and

step S104: acquiring a current workflow node in the instantiated general workflow template, determining, based on the audit attribute, whether the current workflow node needs to be certified, if yes, certifying, by a centralized certification party, data needing to be received or sent by the current workflow node defined in the general workflow template and a data template defined in an instantiating process, and depositing certification, by a blockchain, for the data needing to be received by the current workflow node and the data template received in the instantiating process, wherein the certification and certification deposition for the data template are the certification and certification deposition for specific data in the data template, and if no, determining whether the current workflow node is an end node.