VGI vs PPGIS …. or just VGI

I have to say, I do agree with some aspects of this article, “Is VGI participation? From vernal pools to video games”, but in majority, I disagree with it. In my understanding, PPGIS is a way for the public to be engaged in decision making by allowing them to incorporate local knowledge, integration and contextualization of complex spatial information and therefore active interactions of participant as well as empowerment of involved individuals and communities is possible, from Professor Sieber’s article: “Public Participation Geographic Information Systems: A Literature Review and Framework”. As for the VGI, its definition is known as: “the widespread engagement of large numbers of private citizens, often with little in the way of formal qualifications, in the creation of geographic information…I term this volunteered geographic information (VGI), a special case of the more general Web phenomenon of user-generated content…” from Goodchild’s article “Citizens as Sensors: The World of Volunteered Geography”. We should pay more attention to the part “more general Web phenomenon of user-generated content”. Therefore, it seems like all the convergence displayed in Tulloch’s article is because VGI encompass PPGIS and that VGI has slightly larger area to cover than PPGIS.

In addition, as mentioned above, PPGIS has a specific purpose and goal and often involve rather specific local population than general public, whereas VGI is more extensive. Furthermore, Tulloch also mentioned that: “One of the fundamental distinctions may turn out to be that VGI is more about applications and information while PPGIS seems more concerned with process and outcomes”, and doesn’t process and outcomes generated through applications and based on information? Perhaps I am oversimplifying this, but then again, it seems quite obvious in my perspective.



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