A theme running throughout the book I co-authored, The GIS Guide to Public Domain Data is to be critical of the data that you are using–even data that you are creating. Thanks to mobile technologies and the evolution of GIS to a Software as a Service (SaaS) model, anyone can create spatial data, even from a smartphone, and upload it into the GIS cloud for anyone to use. This has led to incredibly useful collaborations such as Open Street Map, but this ease of data creation means that caution must be employed more than ever before, as I explain in this video.
See more on:
https://spatialreserves.wordpress.com/2015/07/26/be-critical-of-the-data-especially-when-it-is-your-own/
--Joseph Kerski
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