Information Technology Reference
In-Depth Information
9.2.3 Data Entry
With the implementation of any system, typically there is old data which is to be
included in the new system. This data can be in a manual or an automated form.
Regardless of the format of the data, the tasks in this section are twofold, data input
and data verification. When replacing a manual system, hard copy data will need to
be entered into the automated system. Some sort of verification that the data is being
entered correctly should be conducted throughout this process. This is also the case
in data transfer, where data fields in the old system may have been entered incon-
sistently and therefore, will affect the integrity of the new database. Verification of
the old data becomes imperative to a useful computer system. One of the ways
verification of both system operation and data integrity can be accomplished is
through parallel operations. Parallel operations consist of running the old process or
system and the new system simultaneously until the new system is certified and
considered stable. In this way if the new system fails in any way, the operation can
proceed on the old system while the bugs are worked out (IRM
2003
).
9.2.4 Post-Implementation Assessment
After the system has been fielded, a post-implementation review is conducted to
determine the success of the project through its implementation phase. The pur-
pose of this review is to document implementation experiences in order to rec-
ommend system enhancements and provide guidance for future projects. In
addition, change implementation notices will be utilized to document user requests
for fixes to problems that may have been recognized during this phase. It is
important to document any user request for a change to a system in order to limit
misunderstandings between the end user and the system programmers.
9.2.5 Documenting Updates
During this phase, the Requirements Analysis Phase is revised. The System
Security Plan, Security Risk Assessment, Software Development Document,
System Software and the Integration Document are also revised and finalized
during the Implementation Phase (IRM
2003
).
9.3 Roles and Responsibilities
• Project Manager: The project manager is responsible and accountable for the
successful execution of the Implementation Phase. The project manager is
