Workflow engines mainly have the following functions:
1) Verification of the current status: Check whether the command is valid in executing a task.
2) Determine the authority of users: Check if the current user is permitted to execute the task.
3) Executing condition script: After passing the previous two steps, the workflow engine begins to evaluate the condition script in which the two processes are carried out, if the condition is true, the workflow engine executes the task, and if the execution successfully completes, it returns the success, if not, it reports the error to trigger and roll back the change.
4) Allow assessment forms to be uploaded and process the fields accordingly, each assessed item can be scored based.
