Determining an impact of an event identified in a first topic map meta-model will have on at least one asset identified in a second topic map meta-model representative of weight. A third topic map meta-model is created which maps at least one asset from the second topic map meta-model to an event from the first topic map meta-model and is comprised of: a topic map representation of assets of the second topic map meta-model and events of the first topic map meta-model, a topic map based index with instance ontology of the first and second topic map meta-models, identification of at least one association between an event identified in the first topic map meta-model and at least one asset identified in the second topic map meta-model; and weight assigned to the at least one association.