Can StreetComplete be used for adding/confirming new POIs?

[NKAmapper]

Use case

I have a number of files with POIs (nodes) which would be useful in OSM, for example all kindergartens in Norway. High quality data, geocoded, tagged and import plan already reviewed. But each node would benefit from verification by a human + slight adjustment of coordinates to get a sensible location for the node at the given address + possibly minor edit of the name tag.
It can be done in MapRoulette, but StreetComplete has a much higher usage in my community. Data can be provided in a geojson file.
Import plan

Proposed Solution

Is this type of task supported by StreetComplete?

[westnordost]

Short answer: No.

Long answer: Theoretically yes, but something along these lines would need to be implemented first. Since there are possibly many people with a list of POIs from a third party data source (that is license compatible), it would make sense to have some sort of backend in which these could be managed so that on StreetComplete-side, there would just be one quest that talks with one API to get a list of to-be-confirmed new POI places.

Maybe MapRoulette could be this backend. I don't know (what it can do, and if there is an API for that).

However, a few additional notes here:

• matching with data already present in OSM is going to be non-trivial. (I.e. no quest should be displayed for a POI that already exists in OSM - at a maybe slightly different position. Maybe it was added very recently.)
• if confirming that the POI really exists requires being on-site, then one could instead also map all the POIs with the "shop overlay" anyway. Sure, this quest would make it so that people do not have to have that overlay active, but still...

(Also, converting this to a discussion, because this is a question)

[westnordost]

There is a missing puzzle piece though. There must be an API in-between alltheplaces and STreetComplete. An API that likely has to record false-positives so that not every mapper is asked again and again if some non-existing shop exists at a location. (see also #5199)

[NKAmapper]

Just to be clear, the POIs I had in mind are all from sources where the owner (government or corporate) have given explicit permission. We have many data sets like this but lack an easy to use app like StreetComplete to get more users engaged in easy verifications and adjustments.

[matkoniecz]

There is a missing puzzle piece though.

Yes, that one would need to run as part of SC infrastructure (like photo service) or be part of ATP.

Another missing part is deciding whether given dataset is good enough to be proposed (suggested making this part of ATP, can be partially manual and partially based on false positive ratio).

[matkoniecz]

have given explicit permission

That drops "we need to wait for LWG to publish minutes" part but otherwise implementation effort and interface would be the same (or greater if that is not aggregated at ATP).

We have many data sets like this but lack an easy to use app like StreetComplete to get more users engaged in easy verifications and adjustments.

Rapid kind of tries this, but it is armchair mapping with all consequences.

[matkoniecz]

And to be clear, I would be really happy to work on it and use it and have it available in StreetComplete but it is much larger project that say street furniture overlay that can be added in some chunks of hobby time.

[mnalis]

Related discussions/issues about using external data as quest source in StreetComplete:

• Use Overture POIs as a shop data source #5199
• "Is this building existing" from external database - is it a good idea? #2477
• Materialize POIs from Notes or external source / Moderated Import #4019
• Import Trees in Germany/Berlin #3738
• Can StreetComplete be used for adding/confirming new POIs? #5389 (which created this discussion, but GitHub does not link discussions neatly)

Also, SCEE fork of StreetComplete has functionality to create quest from (externally generated) .csv file which is related tunable functionality, but it is local-device only (and not distributed among different users, which is wanted in many cases like here).

• Will it be possible to edit the objects specified in "external quests"? Helium314/SCEE#362

Perhaps having some server on which such datasets can be setup, and SC/SCEE functionality to "subscribe" to wanted datasets (assuming there will be more than one dataset available in a country)? In that case, server would be relatively simple (e.g. see what data SCEE .csv functionality has: basically lat, lon, text, node tags) but solved quests could be removed from everybody lists thus eliminating wasted duplicate effort. That is assuming functionality similar to what SCEE has for confirming objects from .csv file is satisfactory.

The main issue there (but with other solutions too) IMHO would be how to detect duplicates (probably should detect main tag that the quest wants to add e.g. amenity, leisure, building and show all of those around current location?)