Multidimensional discrete data (MDD), i.e. arrays of arbitrary size, dimension and base type, occur in a variety of application elds. The object-oriented DBMS RasDaMan2 provides domain-independent management of MDD. In the design and development of the RasDaMan system, an informed assessment of current solutions to the management of persistent MDD led to the identi cation of major limitations remaining in object and object relational DBMSs and to the proposal of alternative approaches. In this paper, we present a discussion of those issues and report on the main design decisions taken for the RasDaMan system.