7.2 Scope of Configuration Management
Configuration Management
covers the identification, recording, and reporting of IT
components, including their versions, constituent components and relationships.
Items that should be under the control of Configuration Management include hardware,
software and associated documentation.
Given the definition above, it should be clear that Configuration Management
is not synonymous with Asset Management, although the two disciplines are related.
Asset Management is a recognised accountancy process that includes depreciation
accounting. Asset Management systems maintain details on assets above a certain
value, their business unit and their location. Configuration Management also
maintains relationships between assets, which Asset Management usually does
not. Some organisations start with Asset Management and then move on to Configuration
Management.
The basic activities of Configuration Management are as follows:
- Planning. Planning and defining the purpose, scope, objectives, policies
and procedures, and the organisational and technical context, for Configuration
Management.
- Identification. Selecting and identifying the configuration structures
for all the infrastructure's CIs,
including their 'owner', their interrelationships and configuration documentation.
It includes allocating identifiers and version numbers for CIs,
labelling each item, and entering it on the Configuration
Management Database (CMDB).
- Control. Ensuring that only authorised and identifiable CIs are accepted and recorded, from receipt to disposal. It ensures that no CI is added, modified, replaced or removed without appropriate controlling documentation, e.g. an approved Change request, and an updated specification.
- Status accounting. The reporting of all current and historical data concerned with each CI throughout its life cycle. This enables Changes to CIs and their records to be traceable, e.g. tracking the status of a CI as it changes from one state to another for instance 'under development', 'being tested', 'live', or 'withdrawn'.
- Verification and audit. A series of reviews and audits that verify
the physical existence of CIs
and check that they are correctly recorded in the Configuration Management
system.
Configuration Management interfaces directly with systems development, testing,
Change Management and
Release Management to incorporate new and updated
product deliverables. Control should be passed from the project or supplier
to the service provider at the scheduled time with accurate configuration records.