The IT Infrastructure Library (ITIL) is a series of eight books and is referred to as the only consistent and comprehensive best practice for IT service management to deliver high-quality IT services. Although produced and published by a single governmental body, ITIL is not a standard and is generally referred to as a framework. There is a lot of work involved in tailoring an implementation to any organization. The published books (subject to change my mid-2007) are:
Software Asset Management
Service Support
Service Delivery
Planning to Implement Service Management
ICT Infrastructure Management
Application Management
Security Management
Business Perspective, Volume II
There are two main operational components or logical groupings within ITIL, with Security Management completing the underpinning for both groups are:
Service Support (activities that are more or less performed daily)
Service Delivery (activities that tend to take place monthly or quarterly, but at a minimum annually)
BUSINESS DRIVERS FOR IMPLEMENTING
ITIL is usually implemented subject to one or more of the following business cases:
Defining of service processes within the IT organization
Defining and improving the quality of services
Need to focus on the customer of the IT
Implementation of a central help desk function
There are several methods in approaching an implementation of ITIL and having done several operations assessments, I can attest that the two main building blocks that have to be solid are Configuration Management and Change Management. Both gear their activities off a Configuration Management Data Base (CMDB). If the CMDB does not exist or if Change Management is a haphazard process, then the other processes within ITIL tend to fail on a regular basis. Recently more and more vendors are creating products geared specifically towards CMDB (e.g., HP, CA, BMC, etc.) that address a method to collect all of the configuration specifics of your environment. If you don’t know what you have, it will be problematic when implementing any change, but you can never been certain of the effect of the change.Two principal concepts characterize the basic thinking of ITIL:
Service management—IT service managers:
Assure the consideration of requirements for operations and maintenance
Develop test plans
Identify the effects on existing infrastructure caused by new or modified systems
Define future requirements
Customer orientation—IT services are to be provided at a level of quality that allows permanent reliance on them. To assure this quality, responsibility is assigned to individuals who:
Consult the users and help them use the services in an optimal approach
Collect and forward opinions and recommendations of users
Track complaints
Monitor the users’ appraisals of the services delivered
Support internal user groups
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