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With rapid growth in over-all industry and the need to upgrade the IT infrastructure accompanying the same growth pace is becoming very critical for all the companies. Such growth is often driven by the customers, company's own expansion plans and at times, proposed by IT team for upgrading the systems. Growth becomes difficult, if changes are made on ad-hoc basis. Even if growth is not the only objective still, un-planned changes cause serious errors in the running systems and make your customers loosing trust in your systems.
A global study revealed that most of the serious disruptions in IT infrastructure were caused by unmanaged changes. And impact on the business was even worst.
Changes to the IT infrastructure might get triggered from any of the following:
1. Bug fixing
2. Upgrading systems
3. New requirements
To ensure uninterrupted and efficient delivery of IT resources to your customers, it is highly essential that all the changes undergo a defined process that eliminates the risk of any disruption to IT services. Such process is known as "Change Management" and is a part of IT service management. This process allows making accepted and approved changes to the IT services in a controlled manner and thus eliminating service disruptions to your customers.
Goal of Change Management
To govern all the changes made into IT environment. This includes, assessing the risk to critical business functions by making those changes. Followed by, implementation of approved changes to existing or new IT services.
Acceptance of such process into existing IT infrastructure management helps in achieving:
1. Process and procedures for requesting and applying changes
2. Proper impact analysis of changes by carrying a thorough risk assessment
3. Keeping a track of made changes
As per ITIL definition for change management:
"The goal of the Change Management process is to ensure that standardized methods and procedures are used for efficient and prompt handling of all changes, in order to minimize the impact of change-related incidents upon service quality, and consequently improve the day-to-day operations of the organization."
Benefits of Change Management
1. Better alignment of IT service to business requirements
2. Increased visibility and communication on changes to both business and service support staff
3. Improved risk assessment
4. Reduced adverse impact of changes on the quality of services and on SLAs
5. Improved problem and availability management through the use of valuable management information relating to changes
6. Fewer changes to be backed-out
References: http://www.itlibrary.org/index.php?page=Change_Management
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