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80 Enterprise Data Governance

between data, rules and processes repositories in order to
enable processes to interact with business rules, and for the
latter to use reference and master data and other data that
resides in transactional databases. This IT infrastructure is
specialized in the implementation of an IT engine that fully
benefits from repositories. This engine is a technical
commodity that could, if the company perfectly mastered it,
become reversible. Therefore:

– the Information System is freed from unnecessary
constraints that tie it to a part of its underlying IT systems
that disappear in favor of data, rules and processes
repositories;

– this freedom from constraint is seen in reference and
master data, business rules and processes stocks, and is also
embodied in administration functions that enable business
users to govern these stocks.

On the basis of this transformation, the answer to the
question concerning the valuation of the Information System
is at hand:

– the value of IT is calculated based on its capacity to
interact with MDM, BRMS and BPM repositories. IT must
first demonstrate its capacity to interact with an MDM
system. Then it must demonstrate its ability to join the
BRMS with MDM. In the ultimate phase, it demonstrates
that it masters the interaction of the BPM and the BRMS.
The order of this chain of interactions is a determining
factor. It must be dealt with in this order as it corresponds to
the logic of regaining control of the whole system: first the
data, then the rules and finally the processes. This
transformation requires time; to avoid an unnecessary
tunnel effect it is necessary to establish a plan of action that
would enable an MDM system, BRMS and BPM to be
deployed in successive slices;