config data accuracy

can anyone explain the risks you would face (perhaps with examples) if the accuracy of the data in your configuration management DB was out of date/inaccurate? say for example in the context of desktops, servers, and network infrastructure. I am new to ITIL and work in a risk section, not IT, so some real world examples of the problems would be very interesting.
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pma111Asked:
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David Johnson, CD, MVPOwnerCommented:
That is one reason why Microsoft developed DSC (Desired State Configuration) which when a server is configured using DSC starts to drift from its baseline it will be reconfigured back to baseline.  One usually wants machines to act in a predictable manner say for instance an admin decides  that their web server doesn't need a web service so the web team deploys something onto that server (that works on every other server) that happens to need that service.. A third admin may be called in to troubleshoot and it may be hours wasted.  What we want is  every machine to act identically given a specific set of inputs.

The same goes for user machines.. we want each machine to act identically under a given scenario, if machines drift from the baseline one gets into the realm of 'it should work' rather than it will work since it was a tested configuration.  The aim is for every user to be able to logon to any machine and be productive right off the bat.  This is especially important in a disaster recovery situation

Configuration Manager is simply a tool and if it is out of date, poorly maintained,then the tool is useless. One is left in the 'I don't know' rather than 'Here it is' situation
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pma111Author Commented:
Thanks but I was more talking about configuration management, i.e. the ITIL process, as opposed to the software.
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