ITIL Current Adaptation

IT Infrastructure Library (ITIL)

• To construct Network Infrastructure Management processes for a global corporation using ITIL best practice guidance as a background.
• To construct and describe Change Management process ·to enable common and consistent way of managing changes in the network infrastructure.
• To construct and describe the Configuration Management process and CMDB so that information about network infrastructure is globally accessible,relationships between infrastructure items are known and the information about the infrastructure is kept up-to-date.

ITIL Change Management 

A study by Gartner consulting states that an average of 80 percent of mission-critical application service downtime is directly caused by people or process failures "unmanaged changes”.

Change Management ensures that standardized methods and procedures are used for efficient and prompt handling of all changes to minimize the impact of change-related incidents upon service quality

ITIL states that Change Management consists of :
raising and recording Changes assessing the impact, cost, benefits and risks of Changes
developing the business justification and obtaining approval management and co-ordination of Change implementation monitoring and reporting on the implementation closing and reviewing Change requests

Change Management is responsible for managing change processes for :
Hardware communications equipment and software system software "live" application software
all documentation and procedures associated with the running, support and maintenance of live systems

ITIL Configuration Management

According to ITIL Configuration Management covers the identification, recording, and reporting of IT components including their versions, constituent components and relationships

• Items that should be under Configuration Management include hardware, software and associated documents
• Configuration Item (CI) is a component of an infrastructure or an item that is under the control of Configuration Management. 
• Configuration Items may vary widely in complexity, size and type, from an entire system (including all hardware, software and documentation) to a single module.

 Configuration Management Database (CMDB)

• Configuration management database (CMDB) is a repository of information related to all the components of an information system
• CMDB represents the authorized configuration of the significant components of the IT environment
• It is a database that contains all relevant details of each CI and details of the important relationships between CIs
• CMDB helps an organization understand the relationships between these components and track their configuration.

Capability Maturity Model Integration (CMMI)

• Capability Maturity Model Integration (CMMI) models are collections of best practices that help organizations to improve their processes
• CMMI model was developed by a product team with members from the industry, the US government, and the Software Engineering Institute (SEI)
• CMMI models have 6 capability levels that can be used to assess ITIL process adaptation
• The case study corporation was trying to move from level 0 (Incomplete) to level 3 (Defined)