A set of pre-defined datacenter IT solution tasks which are to be performed by a user for setting up or for extending a datacenter is provided for a pre-defined IT solution. Groups of basic tasks and learning tasks are provided such that each learning task comprises one or more basic task. A sequence of interface tasks is assigned to the basic tasks and learning tasks. An interface task provides a predefined instruction or set of instructions for validation or for verification of the correctness of the performed learning task or interface task. This is done by evaluating a characteristic behaviour of the datacenter and not necessarily by monitoring each step of the user who is fulfilling the tasks.