A general technique combining model checking and abstraction is presented that allows property based analysis systems consisting of an <i>arbitrary</i> number of featured components. We show how parameterised systems can be specified in a <i>guarded command</i> form with constraints placed on the variables which occur in guards. We prove that the results that hold for a small number of components can be shown to scale up. We then show how featured systems can be specified in a similar way, by relaxing the constraints on the guards. The main result is a generalisation theorem for featured systems which we apply to two well known examples
