The training presents participants with functional software architecture as an alternative to object-oriented architecture. Compared to OO architecture, functional software architecture relies on immutable data, algebraic abstractions and embedded domain-specific languages. The result is flexible and robust architectures that are less complex than OO and have fewer hidden dependencies. Unlike OO architectures, FP architectures are direct code. In this module, all architectural principles can therefore be illustrated using concrete code and can therefore be learned clearly. The training includes hands-on exercises in which programming is carried out (in Haskell). An introduction to Haskell is given as part of the training. Previous knowledge of functional programming is helpful but not necessary. The content of the training is based on the current iSAQB curriculum. The organizer and implementer is Active Group GmbH.