All Change suggestions are submitted to the CAB. Depending on the category, the suggestions are estimated, confirmed and scheduled.
Following points are taken into consideration:
- Financial: cost/benefit analysis and budget
- Technical: impact, necessity and feasibility
- Business: approval by the users of the required functions and impact
The CAB acts as adviser.
When estimating the required resources and impact of the change, the members of the CAB, the Change Manager and all others
involved (they can be named by the Change Manager) should consider the following aspects:
- Capacity and performance of the affected service(s)
- Reliability and recoverability of the service(s)
- IT Services Continuity Management plans
- Back-out plans
- Security
- Impact of the change on other services
- Required resources and costs (support and maintenance)
- Number and availability of required specialists