Chapter 3: Change and Configuration Management 41

change. In this case, expertise with Exchange and hardware is very important. In fact, the change manager may decide to appoint an OEM vendor representative to the change advisory board.

The change advisory board determines the hardware upgrade schedule, according to IT executive committee recommendations. The change advisory board is also responsible for monitoring the change and it ensures that all authorized changes are coordinated and scheduled to eliminate the possibility of one change negatively affecting another change.

Step 5 – Change Is Passed to the Change Owner

The change owner is responsible for planning and implementing the hardware upgrade once it has been approved and scheduled by the change management process. The change owner will provide feedback to the change advisory board, the change manager and perhaps the change initiator during the implementation. However, the change manager remains involved at this stage, monitoring what the change owner is doing.

After the upgrade is complete, the change owner will help the change manager and change initiator assess the impact of the change.

All of this may seem to be a deeply complicated process, but remember this describes a major change to the environment. Minor changes would pass through a significantly simpler path, involving the change owner.

Step 6 – Change Process Evaluation

After the change is implemented, the entire change management process from receipt of RFCs through implementation must be evaluated. This is done by conducting personnel interviews and reviewing documentation. The main objective is to assess the effectiveness of the change process. Unsuccessfully implemented changes should also be evaluated so that problems can be identified and corrected before further changes are initiated.

Figure 3.1 illustrates the change management process, with the parties responsible for each stage. (For the sake of clarity, this diagram largely ignores inter-related areas of manage- ment such as configuration and availability management.)

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Microsoft 1 manual Change Is Passed to the Change Owner, Change Process Evaluation