1. In a geographic information system (GIS), a method performed by a first processor of multiple processors in communication with a server over a network, the method for collaboration between users of the multiple processors, the method comprising: receiving, at the first processor, a first scenario generated by a second processor of the multiple processors, the first scenario including a first set of parameters executed at the second processor for conducting geo-spatial analysis of image data; performing, at the first processor, the first set of parameters of the first scenario on the image data; presenting the image data to the user of the first processor after the first set of parameters are performed; receiving from the first user a response to the scenario via a user input device; and transmitting the response for receipt of the response by the second processor.