Papel: Provenance-Aware Policy Definition and Execution

Data processing is often restricted by contractual and legal requirements for protecting privacy and intellectual-property rights. Internet policies help control how and by whom data is processed. Policy conditions could depend on previous data processing and thus on the processing histories´ temporal structure. However, existing policy languages don´t allow for expressing the temporal aspects of such conditions. Papel (Provenance-Aware Policy Definition and Execution Language) uses provenance information to connect data-processing policies and histories and to map the processing histories´ temporal structure to a graph structure.