Good Practice Guidelines for Assessing VGI Data Quality

Assessing the data quality of Volunteered Geographic Information (VGI) is important for determining the fitness-for-use of VGI for different applications. This paper provides guidelines for good practice that may assist in quality assessment, in particular recommendations on additional data that could be used and procedures that could be implemented that will facilitate the assessment of VGI quality. Finally, the role of protocols is discussed in terms of how they might improve data quality assessment.