Spatial information functional plug-in workflow construction method

The invention relates to a geography information system (GIS) technology, in particular to a spatial information functional plug-in workflow construction method which comprises the steps that: Step (1) a database is connected and a data source is set; Step (2) a process template is created, process parameter information is added according to the factors of a process realization function, and the parameter information which is filled in is written into a workflow database table; Step (3) process parameters are defined for transmitting in and out parameters required by all functional nodes in a process; Step (4) a GIS workflow functional node is created, and the properties of the functional node are edited; Step (5) workflow starting and ending logic, activity execution logic and process control logic are defined; Step (6) the process parameters are edited and executed; and Step (7) the embodiment of workflow is debugged and operated according to workflow engine algorithm based on an activity state promoting mo