Data centric focus the design on the data, how the data is represented, etc. Quite often it implies using a database or something similar. The entire program is very much tied into how the data is implemented. The goal is to optimize based on the data being processed.
In an OO approach you are actually trying to hide the data model within objects. Only the object knows what the data is like, how created, access, etc. The goal here is to protect the overall program from being affected by changes in the internal implementation.
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