Model ontology and information architecture

Earlier in addressing the issue of having models-talk-to-models through computers, we had introduced the concept of a model ontology. [1] We next applied this to economic models, which need to communicate information between economic processes; and we examined how the concept of perfect information in economic markets did not fit financial market reality. [2] Accordingly, model ontologies for economic processes were more complicated than merely information transformation between models; but they also involved additional economic processes as transforming information between economic models. In this paper we further explore this aspect of model ontology - but now not merely as information transfer but also as information processing. The concept of a model ontology can provide the architecture for focusing information systems around important policy issues.