This document describes a basic role and functional model of the intelligent transport systems (ITS) data aggregation role, which is a basic role of ISO/TR 4445. It provides a paradigm describing: a)       a framework for the provision of ITS data aggregation for cooperative ITS service application; b)       a description of the concept of a role and functional model for such roles; c)        a conceptual architecture between actors involved in the provision/receipt of ITS data aggregation; d)       references for the key documents on which the architecture is based; e)       a taxonomy of the organization of generic procedures.