In this paper, a zero-defect acceptance sampling with rectification is used to evaluate the quality of spatial database. In such case, quadrats are the area sampling frames and the
optimum sample size to be extracted in a digital file generated from a conversion process; the size of the team of inspectors is determined so as to satisfy economic criteria. For the
implementation, a program was developed using the software Matlab and it is available for readers in the Appendix. The proposed procedure is illustrated by the application to digital
data on the water distribution network.