> On Jan 4, 2015, at 21:11, Richard Z. <[email protected]> wrote: > > On Sun, Jan 04, 2015 at 09:18:57AM -0200, Lists wrote: >> May I suggest the following work flow: >> >> 1) Agree upon 2 dates sufficiently spaced i.e. 2 weeks apart >> 2) First date, add the new tag, leave the old tag in the system. This will >> not break anything, and from that date data consumers know they can start >> migrating their renderers, harvesters, or whatever into the new scheme >> without loss of data integrity >> 3) Run sanity checks on the data, maybe manually correct slips such as >> type=sewer -> substance=sewage if needed >> 4) On Second date remove the unwanted key, objects where the key should >> remain should have been flagged by now, and data consumers should all be on >> the new scheme also. >> 5) Define an interval to re-run the scripts if it is probable that anybody >> still might use the old scheme. > > it needs more flexible rules and generally the suggested 2 weeks are > extremely short. I was just throwing out a suggestion for timeframe without thinking much about its feasibility, I agree that the timeframe might need to be longer, and that is for me an open topic for discussion. I will not myself take part in any mechanical edit, though I might be affected as a data consumer.
> For example we still have many (not counted) culvert=yes even > though it is considered obsolete since a long time. > That might be that they haven’t done any mechanical edits, and that old data still are accepted in many data consumers > In those cases (like here) when it is possible to have the old and > new tagging in parallel the transition could be done in two steps > long apart. > I agree that it should be a two-step job > >> This should be the general rule for mechanical edits when migrating tagging >> schemes. Also make sure that editors such as Potlatch2, iD, JOSM and >> Merkaartor, all have corrected their presets by the second date. If old >> scheme is stuck in the preset than it is likely that old scheme will >> continue to be used. > > also to be considered if keepright or similar need adjustments > I was mentioning a few sources I could get from the top of my head, I probably have forgotten a lot of them > > Richard Aun Johnsen _______________________________________________ talk mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk
