Methods and apparatus, including computer program products, are provided for simulating business object behavior with a mockup object. In one exemplary embodiment, the method may include receiving a name of the mockup object for which to perform a specified action on, wherein the mockup object comprises one or more nodes, and receiving the action to be performed on the mockup object. The method may also include determining whether the action can be performed on the mockup object based on a set of conditions defining the status of the mockup object, and performing the action based on the determining step.