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ArchitectureofChangeRequestManagement
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Correction phases. This is an option to be used in exceptional cases only. However,
it gives you the exibility you need to implement essential corrections at the last
minute. Note also that only the IT operator or project lead should be authorized
to implement corrective action in this way.
Urgent Correction2.3.5
Urgent Correction, which is only available in maintenance projects, is a transaction
used when a change must be transported immediately into the target system. It
therefore gives you the option of transporting a change into the production system
before the end of a maintenance cycle. Later, we will show that no problem occurs
with this procedure, particularly with regard to data consistency.
The urgent correction, which has the technical name SDHF, is a partly automated
transaction. Many activities are executed automatically in an urgent correction, in
contrast to a normal correction, where a large number of activities depend on the
specic selections made by the user. For example, transport requests are immedi-
ately generated after an urgent correction is set to In Development. In addition,
an individual urgent correction can be transported into the production system
within the document. In a normal correction, by contrast, an IT operator executes
this nal step centrally for all corrections at the end of a project or maintenance
cycle.
This exibility is due to the individual task list of an urgent correction. As explained
above in Section 2.2.4, Project Cycle and Task List, normally only project or main-
tenance cycles have a task list. If changes of the normal correction, test message,
or administration type are executed in a project or maintenance cycle, the current
phase of the cycle determines whether it is possible to release a normal correction
or create a test message, for example. In this way, the phases of cycles determine
the scope of permitted activities. An urgent correction therefore has its own task
list, which allows it to take effect independently of these restrictions.
Urgent corrections may have the following user statuses: Created, In Development,
To be Tested, Successfully Tested, Authorized for Import, Production, Conrmed,
completed, and Withdrawn. As shown in Figure 2.32, an urgent correction can be
created and changed at any stage up to the Emergency Correction phase. In the
Go-Live phase, an urgent correction can be created but cannot be exported.
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