Information Technology Reference
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lead times with respect to realisation has to be scheduled. Acceptance procedures
for interfaces have been described above.
7.3.4.4 Test System
Technically an empty system will be provided initially with the agreed upon
version of the operating system. For this provision the same customising rules as
for a productive system have to be observed except for system addressing. For
project planning the exact chronological sequence of the data upload is decisive.
The following steps have to be observed:
￿ Decision regarding source systems, from which data will be obtained,
￿ Verification of the existence of the necessary upload interfaces,
￿ Time required for the upload,
￿ Quality assurance of upload,
￿ Additional migrations for improvement of the original data base,
￿ Quality assurance of migrations,
￿ Manual and automatic data clean-up,
￿ Defining responsibilities for continuing data maintenance,
￿ Backup of total test data base.
7.3.4.5 Process Documentation
The existing process documentation has to be tailored to the new system environ-
ment. In case there is no documentation at all it has to be written. In this case the
usual levels have to be observed: overview documentation, detailed descriptions
and work instructions. Here only the latter are of relevance. They serve as a basis
for training documents. Work instructions describe the handling of the software on
the system by the end user.
Additionally documents have to be drafted describing operations, the handling
of interfaces as well as the triggering of reports. Of importance is also the descrip-
tion the error management process: support levels and escalation paths including
contact persons and their telephone numbers. The documentation is part of the
overall package to be accepted.
7.3.4.6 Access Rights
When implementing user access rights the following rules have to be observed:
￿ The access rights for the new test system usually do not fit the same persons
(with the possible exception of administrators), whom they were assigned to on
existing systems.
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