Today, developers and operators of data warehouse architectures must be able to react flexibly to extensions. Often they face a particular challenge, but it can be handled easily – with the right method and toolset to implement the extensions adequately and efficiently. At best, to start such a project, but at the latest at this point, it makes sense to pursue agile development approaches. A diverse, constantly expanding toolset, such as DataVault 2.0, helps to reduce the complexity and thus increase the development speed. Organisationally, the development processes must be embedded in appropriate project management.