Search Anything You Like

Tuesday, March 13, 2012

ITIL Interview Preparation


Access Management Process
The purpose of the Access Management process is to provide the rights for
users to be able to access a service or group of services, while preventing access
to non-authorized users.
Access Management helps to manage confidentiality, availability and integrity
of data and intellectual property.
Access Management is concerned with identity (unique information that
distinguishes an individual) and rights (settings that provide access to data
and services). The process includes verifying identity and entitlement, granting
access to services, logging and tracking access, and removing or modifying
rights when status or roles change.

Problem Management Process
A problem is a cause of one or more incidents. The cause is not
usually known at the time a problem record is created, and the
problem management process is responsible for further
investigation.
The key objectives of Problem Management are to prevent problems and
resulting incidents from happening, to eliminate recurring incidents and to
Minimize the impact of incidents that cannot be prevented.
Problem Management includes diagnosing causes of incidents, determining
the resolution, and ensuring that the resolution is implemented. Problem
Management also maintains information about problems and the appropriate
Workarounds and resolutions.
Problems are categorized in a similar way to incidents, but the goal is to
understand causes, document workarounds and request changes to
Permanently resolve the problems. Workarounds are documented in a Known
Error Database, which improves the efficiency and effectiveness of Incident
Management

Event Management Process
An event is a change of state that has significance for the
management of a configuration item or IT service.
An event may indicate that something is not functioning correctly, leading to an
incident being logged. Events may also indicate normal activity, or a need for
routine intervention such as changing a tape.
Event management depends on monitoring, but it is different. Event
management generates and detects notifications, whilst monitoring checks the
status of components even when no events are occurring.

Incident Management Process
An incident is an unplanned interruption to an IT service, or a
reduction in the quality of an IT service. Failure of a
configuration item that has not yet impacted service is also an
incident.
The purpose of Incident Management is to restore normal service as quickly as
possible, and to minimize the adverse impact on business operations.
Incidents are often detected by event management, or by users contacting the
service desk. Incidents are categorized to identify who should work on them
and for trend analysis, and they are prioritized according to urgency and
business impact.
If an incident cannot be resolved quickly, it may be escalated. Functional
escalation passes the incident to a technical support team with appropriate
skills; hierarchical escalation engages appropriate levels of management.
After the incident has been investigated and diagnosed, and the resolution has
been tested, the Service Desk should ensure that the user is satisfied before the
incident is closed.
An Incident Management tool is essential for recording and managing incident
information.

Service Measurement
There are four basic reasons to monitor and measure, to:
_ validate previous decisions that have been made
_ direct activities in order to meet set targets - this is the most prevalent
reason for monitoring and measuring
_ justify that a course of action is required, with factual evidence or proof
_ intervene at the appropriate point and take corrective action.

 Transition Planning and Support
The goals of Transition Planning and Support are to:
_ plan and coordinate resources to ensure that the requirements of Service
Strategy encoded in Service Design are effectively realized in Service
Operations
_ identify, manage and control the risks of failure and disruption across
transition activities.
Effective Transition Planning and Support can significantly improve a service
provider’s ability to handle high volumes of change and releases across its
customer base.

Change Management
Change Management ensures that changes are recorded, evaluated,
authorized, prioritized, planned, tested, implemented, documented and
reviewed in a controlled manner.
The purpose of the Change Management process is to ensure that standardized
methods are used for the efficient and prompt handling of all changes, that all
changes are recorded in the Configuration Management System and that
overall business risk is optimized.
The process addresses all service change.
A Service Change is the addition, modification or removal of an
authorised, planned or supported service or service component
and its associated documentation.
Therefore change management is relevant across the whole lifecycle, applying
to all levels of service management – strategic, tactical and operational.

Supplier Management
The Supplier Management process ensures that suppliers and the services they
provide are managed to support IT service targets and business expectations.
The purpose of the Supplier Management process is to obtain value for money
from suppliers and to ensure that suppliers perform to the targets contained
within their contracts and agreements, while conforming to all of the terms and
conditions.
The Supplier and Contract Database (SCD) is a vital source of information on
suppliers and contracts and should contain all of the information necessary for
the management of suppliers, contracts and their associated services.

Capacity Management
Capacity Management includes business, service and component capacity
management across the service lifecycle. A key success factor in managing
capacity is ensuring that it is considered during the design stage.
The purpose of Capacity Management is to provide a point of focus and
management for all capacity and performance-related issues, relating to both
services and resources, and to match the capacity of IT to the agreed business
demands.
The Capacity Management Information System (CMIS) is the cornerstone of a
successful Capacity Management process. Information contained within the
CMIS is stored and analyzed by all the sub-processes of Capacity
Management for the provision of technical and management reports, including
the Capacity Plan.

Service Design is a stage within the overall service lifecycle and an important
element within the business change process. The role of Service Design within
the business change process can be defined as:
The design of appropriate and innovative IT services, including
their architectures, processes, policies and documentation, to
meet current and future agreed business requirements.
The main goals and objectives of Service Design are to:
_ design services to meet agreed business outcomes
_ design processes to support the service lifecycle
_ identify and manage risks
_ design secure and resilient IT infrastructures, environments, applications
and data/information resources and capability
_ design measurement methods and metrics
_ produce and maintain plans, processes, policies, standards, architectures,
frameworks and documents to support the design of quality IT solutions
_ develop skills and capability within IT
_ contribute to the overall improvement in IT service quality.

Service Portfolio Management (SPM)
SPM involves proactive management of the investment across the service
lifecycle, including those services in the concept, design and transition pipeline,
as well as live services defined in the various service catalogues and retired
services.
SPM is an ongoing process, which includes the following:
_ Define: inventory services, ensure business cases and validate portfolio
data
_ Analyze: maximize portfolio value, align and prioritize and balance supply
and demand
_ Approve: finalize proposed portfolio, authorize services and resources
_ Charter: communicate decisions, allocate resources and charter services.

Problems are categorized in a similar way to incidents, but the goal is to
understand causes, document workarounds and request changes to
permanently resolve the problems. Workarounds are documented in a Known
Error Database, which improves the efficiency and effectiveness of Incident
Management

Continual Service Improvement (CSI) is concerned with maintaining value for
customers through the continual evaluation and improvement of the quality of
services and the overall maturity of the ITSM service lifecycle and underlying
processes.
CSI combines principles, practices and methods from quality management,
Change Management and capability improvement, working to improve each
stage in the service lifecycle, as well as the current services, processes, and
related activities and technology.
CSI is not a new concept, but for most organizations the concept has not moved
beyond the discussion stage. For many organizations, CSI becomes a project
when something has failed and severely impacted the business. When the issue
is resolved the concept is promptly forgotten until the next major failure occurs.
Discrete time-bound projects are still required, but to be successful CSI must be
embedded within the organizational culture and become a routine activity.



No comments:

Post a Comment