Skip to content

Validation

Validation is the final step of the mapping process. It is necessary to ensure good quality data. Validation requires a slightly different skill set than just being a good mapper. Being an experienced mapper is a good start of course.

For Tasking Manager, validators review the work of the remote mappers. It is not unusual that features get misidentified by the mappers due to poor imagery. Validators have much experience with identifying obscure buildings types in different countries.

Being a validator is more than being a mapper. As a person dealing with quality issues, a validator is also a mentor to other mappers, improving their skills as well. Mentoring of course requires an ability to communicate mistakes with empathy and understanding, as we all make mistakes...

References

There are multiple good sources for information on validation for more detail.

  • After you’ve had some experience mapping, you may find yourself correcting other contributors work. /MissingMaps_validation_faq_en.pdf

  • Before validating the work of others, you should be an experienced mapper yourself. Validating_Data_EN.pdf

  • Mappers wishing to become validators should take time to become experienced at mapping and learn what validation entails before submitting an application. validators-experienced-mappers-making-an-outsized-difference/

  • Validation is the process of an experienced mapper reviewing the mapping of the initial mapper of a project task. Validation

  • In OpenStreetMap anyone can validate as long as they do not validate their own work. However, they can validate another mapper's contributions. Validating Data

  • Mappers that wish to become validators must have experience with tracing and tagging complex features in OSM, outstanding image interpretation skills, a positive attitude and manner towards other users, and a willingness to learn new software. Validation hub