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76 Enterprise Data Governance

Such a control system is as opaque as the information
system that it is meant to monitor!

This is an additional sign of the difficulty IT has in
aligning itself with businesses. Each new supervision
business rule requirement leads to a new bespoke software
development. The greater the surveillance requirements are,
thanks to the experience that business users have acquired,
the more the business rules correspond to a great deal of
data. This data has a greater probability of being stored in
different databases, which increases the difficulties for IT
specialists.

This control system, as strategic as it might be for the
company, becomes obsolete, maybe even nipped in the bud, if
those in positions of responsibility know how to anticipate
the brakes that we describe here, and judge that it is better
not to send teams into this dead end.

However, the need for surveillance remains. It is more
and more necessary with the increasing complexity of
organizations. We will see below that MDM answers this
requirement.

4.3.2. MDM for the control of operational risks
Since reference and master data are available in an MDM
system, in a reliable manner, it is from this that any
supervision business rules must be activated. From then on,
the marginal cost of the implementation of any new rules is
practically nothing. As the data is available in a reliable
location, IT practitioners no longer need to develop specific
software to gain access to the data processed by the rules.

Certain rules also take advantage of transactional data
that are not in an MDM system, unless they are in the
definition of duplicated data between systems (see Chapter