The more detailed our mapping of the real world becomes, the more it becomes apparent that a single node, way or relation is insufficient to represent the complex properties of a real-word object. Streets have many lanes. Buildings have entrances, 3D shapes and POIs inside. And let's not even start talking about the complexity of a major railway station.

This talk will take a systematic look at the different ways how complex objects are being mapped in OSM. We explore how editors cope with the complexities of detailed mapping and discuss the implication on how our processing tools need to change to better handle relationships between objects.

The OSM Foundation is kept running with the help of many volunteers. They look after our servers, the data, the community, the conference, membership and much more. In this session, some of our working groups will introduce themselves. Hear about what they do and how you can help. There will be also plenty of time to ask questions.

OpenStreetMap Foundation Board Ask Us Anything (i.e. AMA). We will take questions from the audience, or other questions that people can submit before the event, and we will talk about and answer them. We can talk about the past actions of the board, and what future plans we have.