Baselines identify the significant states within the revision history of
a configuration item. They capture the changes that were approved and
implemented for a particular version of an item. By comparing the active item
with its previous baselines, you can view the modifications that occurred
between CI versions.
uses separate items in the CMS workflow to track active CIs and baselines. The
state of the item in CMS workflow determines whether the item is an active CI,
an active baseline, or an inactive baseline. Links exist between baselines and
active CIs, which allows
track the baselines associated with each active CI.
The complete process for creating a new active CI and baseline using a
non-emergency RFC is as follows:
- RFCs are required for a change to a CI. When you submit an RFC
against an active CI, a new CI is also submitted. The new CI is placed in the
Pending Change state, where it remains until the change is
completed. The new CI is linked to the active or original CI, and it is
pre-populated with information from the existing CI. You can find a link to an
active CI from the new CI on the
Details tab. You will see that the version number was
automatically incremented on the new CI.
- The original CI moves to the
Baseline Pending state, informing you that a new CI is in the
process of being implemented.
- After the RFC is closed, the new CI moves to the
Verification Required state, where the change is verified by the
Configuration Analyst to ensure that it matches what was expected.
- After being verified, the new CI becomes the active CI. The original
CI transitions from the
Pending Change state to the
Active Baselines state, marking it as a baseline. Active
baselines appear on the
- A baseline can replace the active CI by selecting to
Restore it. This creates an RFC and a duplicate of the baseline
item. After the RFC is completed, the duplicate item will become the new active
In summary, an item in the CMS workflow can have the following possible
designations as it moves through the workflow:
Active CI is the current version of the CI.
Pending Change is an item that is waiting for an RFC to be
completed before it becomes the active CI.
Active Baseline is a non-current version of the CI that is in
Active Baselines state. You can see the active CI on the
Details tab. (When you are viewing an active baseline, the
report on the
Baselines tab is empty.)
Inactive Baseline is a version of the CI that has been
deactivated. Deactivated baselines do not appear on the
Baselines tab. You can find inactive baselines by running a
report against the CMS project that contains the baseline items. Remember to
include inactive items in your report.
Note that all opened RFCs must be closed before the CI will transition
to the next state. That is, if you have multiple RFCs open for one CI, all of
them must be closed before the CI becomes the new active CI.
Note: Baselines are not created for a CI related to an emergency RFC
until the RFC is closed.
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