Future users of large data banks must be proteted from having to know how the data is organized in the machine.
The relational model [...] appears to be superior in several aspectts to the graph or network model.
[...] it provides a basis for a high level data language which will yield maximal independence between programs on the one hand and machine representation and organization of data on the other.
[...] it forms a sound basis for treating derivability, redundancy, and consistency of relations.
Tackles: ordering dependence, indexing dependenve, access path dependence