The ongoing development of the OSI standards for computer communication prompts existing networks to provide OSI inteconnectivity. Achieving this requires two mechanisms: a global scheme to name applications, and specific solutions to provide internetwork addressability between applications. The problem of identification of remote resources across between two networks is considered. A solution is presented for the case of the interconnection of OSI and of a generic non-OSI network architecture. The OSI model is presented first, then an integration strategy is developed, both for naming and addressing. An internetwork directory service instrumental to such an integration is introduced and developed in some detail.