[OSM-dev] Start Contribution

Akash Ashok thehellmaker at gmail.com
Wed Oct 9 16:12:28 UTC 2013

Oh Alright. Thanks a lot for the detailed breakup. I think it was my
mistake i wasn't clear at all. I just wanted to know how we are designing
the site are there designers involved on the website front.

Secondly my interest is mainly on the backend, POSTGIS, Routing Algos on
top of it etc... Now that i see there are quite a few components. What I'll
do is go thru the components and see what interests me and start picking up
really small tasks on those components.

Akash A

On Wed, Oct 9, 2013 at 9:31 PM, Serge Wroclawski <emacsen at gmail.com> wrote:

> Akash,
> It's a bit more complicated than that- and this really should be
> better documented (or if it- easier to find).
> You can think of OSM as a series of components which fit in together
> and then each have their own purpose.
> At the bottom, the lowest level, there is the Postgis database, with
> the API schema.
> Then on top of that is the website, sometimes called "the rails port".
> It's written in Ruby on Rails and handles all the user action on
> osm.org and has code for all the OSM editing API (commonly just called
> "the API").
> From there, the rest of the systems are more or less decoupled.
> cgimap is a program that handles the most performance sensitive API
> calls. It's written in C with an eye towards speed (vs the website
> itself, which is in rails).
> Then there's the render system. That deserves its own email, but
> essentially it's a separate database, and a software stack of it own.
> Then there's the geocoder, nominatim. It also deserves its own email,
> and it is also a separate database and software stack.
> Then there's the editors. Some of them, like iD and Potlach, are web
> based, so they live in the website, as far as the user is concerned,
> but are maintained by different teams of people. Other editors (like
> Josm) run on the desktop, or they run on mobile phones. All the
> editors talk to the API.
> So when you say you want to work on "interaction"- folks are assuming
> you mean the website, but they're not sure if you don't mean one of
> the editors.
> - Serge

Akash A
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