Abstract: A method of carrying out a certain action on a model, such as a business measures model (BOM Observation Model), wherein the model includes a plurality of elements, the or each of which represent a part of the model, the method comprising extracting each element of the model using a element extraction process; determining a logical grouping for each extracted element; determining one or more parameters relating to each extracted element; determining a hierarchy of the extracted elements to produce a hierarchical tree diagram of the extracted elements of the model based on the logical grouping; including the or each parameter with each extracted element in the hierarchical tree diagram; and using the hierarchical tree diagram to access the one or more parameters of each element to allow the certain action to be carried out.