This blogpost is a successor of the blogpost "DevOps series : Working with teams in a data warehouse (part I)". In order to control the changes of the objects in a large data warehouse environment with multiple teams, one of the first steps you have to take is to define ownership. Who is the owner of that object? Because if all teams are responsible for the objects, no one is responsible for the objects. Sometimes there is some implicit knowledge who is responsible, and perhaps consultations happens between teams, but it will quickly grow out of hand when the number of teams grow. Therefore, to get control over de objects, teams need clear understanding and take ownership and responsibility for the objects for which they feel and are responsible.