07 August 2008

Glossary I


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Identification See Configuration Identification.
Immediate Recovery In liberal terms, this IT Service Continuity option provides for the immediate recovery of services in a contingency situation.  The instant availability of services distinguishes this option from what may be referred to as 'Hot Stand-by/Start', which typically will permit services to be recovered within 2 to 24 hours depending on the criticality of the business process they support.  Depending on that business criticality, 'immediate' recovery may therefore vary from zero to 24 hours.  See also Gradual Recovery, Intermediate Recovery.
Impact A measure of the effect that an Incident, Problem or Change is having or might have on the business being provided with IT services.  Often equal to the extent to which agreed or expected levels of service may be distorted.  Together with urgency, and perhaps technical security, it is the major means of assigning priority for dealing with Incidents, Problems or Changes.
Impact Analysis The identification of critical business processes and the potential damage or loss that may be caused to the organisation resulting from a disruption to those processes, or perhaps from a proposed change.  Business impact analysis identifies the form the loss or damage will take; how that degree of damage or loss is likely to escalate with time following an Incident; the minimum staffing, facilities and services needed to enable business processes to continue to operate at a minimum acceptable level; and the time within which they should be recovered.  The time within which full recovery of the business processes is to be achieved is also identified.
Impact Code A simple code assigned to Incidents, Problems or Changes reflecting the degree of actual or potential impact on Customer's business activities.  Also the extent of deterioration in normal User service levels.  An impact code is not neccessarily fixed and may change to reflect changing circumstances.
Impact Scenario An IT Service Continuity Management term describing the type of impact on the business that could follow a business disruption.  It will usually be related to a business process and will always refer to a period of time e.g. Customer services will be unable to operate for two days.
Incident An event which is not part of the standard operation of a service and which causes or may cuase disruption to, or a reduction in, the quality of services and Customer productivity.

An Incident might give rise to the identification and investigation of a Problem, but never becomes a Problem.  Even if handed over to the Problem Management process for 2nd Line Incident Control it remains an Incident.  Problem Management might, however, manage the resolution of the Incident and Problem in tandem, for instance if the Incident can only be closed by resolution of the Problem.

Incident Categorisation A sub-division of Classification, which provides a means of identifying, using a series of structured codes, firstly, what appears to have gone wrong with the IT Service (the symptoms), secondly why (the cause of that failure) and thirdly identification of the component likely to be at fault.  The category codes are elements within the classification data string and are essential for fault analysis purposes.
Incident Classification See Classification.
Incident Control The process of identifying, recording, classifying and progressing Incidents until the affected service is restored.  The collection of data to identify causes of Incidents is a secondary objective of Incident Control, though this may sometimes be neccessary to effect Incident resolution.  Incident Control is essentially a task of Incident Management, and therefore of the Service Desk, but it may occasionally extend beyond the defined role or authority of that group and require the 2nd Line support of other staff, possibly Problem Management.  The exact circumstance under which this happens would be described in an Incident Management procedure.
Incident Control Support This is an occasional task, perhaps undertaken by the Problem Management team.  There are instances when an Incident has occurred and it becomes apparent that further time and resource investment by Service Desk staff (both 1st and 2nd Level) is likely to impact upon their prime responsibility of responding to Customers and returning services as quickly as possible.  These are situations that call for detailed investigation and diagnosis, that require the co-ordination of technical support team(s), or that cater for the re-direction of Service Desk resources elsewhere (e.g. to other Incidents).  Another group, such as Problem Management, may in these circumstances be asked to manage the operational progress of the Incident.  However, the Service Desk retain their overall responsibility for the Incident's life-cycle management.  Such an Incident would be referred to the Incident Control Support group by Incident Management in accordance with Incident Management procedures.
Incident Life-cycle The progression of an incident through Occurrence of the Incident,  Detection of the Incident, Diagnosis of the cause of failure, Repair of the CI, Recovery of the CI back to the live infrastructure and Restoration of the service.
Incident Management The Service Management process of managing unexpected operational events with the primary objective of returning service to Customers as quickly as possible.
Incident Record A record containing the details and history of an Incident.
Incident Report A form, or screen, containing details of Incidents involving any component of an IT infrastructure or any aspect of the IT service.  Incident reports may come from a variety of sources and will usually result in the creation of an Incident record.
Indirect Cost A cost incurred which cannot be directly allocated in full to a single product, service, Customer, cost centre or business activity; incurred on behalf of a number of cost units or centres to which the cost may be apportioned.  An example would be the costs of a server used to support three separate services.
Information and Communications Technology Information Technology, with the role of telecommunications technology emphasised.  See also Information Technology.
Information Service All of the components that form an IT service supporting a Customer's business process, including not only the computing and telecommunications hardware and software but the people, processes and supporting documentation, training, etc. See also Information Technology Service.
Information System The hardware and software (mainly) that lies at the heart of an IT service supporting a Customer's business process.
Information Systems Examination Board The UK ISEB, part of the British Computer Society, administers and awards IT qualifications, including the Foundation, Practitioner's and Manager's Certificates in IT Service Management.  It is one of a number of bodies worldwide that offer equivalent examinations in IT Service Management.
Information Technology The application of science to the processing of data according to programmed instructions in order to derive results.  In the widest sense, IT includes all information and all technology; in a much narrower sense, telecommunications technology is excluded - or for some particular reason needs to be emphasised.  See also Information and Communications Technology.
Information Technology Service A set of related functions provided by IT systems in support of one or more business areas, which in turn may be made up of software, hardware and communications facilities, perceived by the Customer as a coherent self-contained entity.  An IT service may range from access to a single application, such as a general ledger system, to a complex set of facilities including many applications, as well as office automation, that might be spread across a number of hardware and software platforms.  See also Information Service.
Informed Customer See Intelligent Customer.
Infrastructure From an IT Service Management perspective, the term is used to describe all of the CIs employed in the delivery of IT services to users, including the computing and telecommunications hardware, software, accommodation, people, documentation and meta-data.  From a business perspective, the infrastructure is a shared resource, the state of which bounds the adaptability and change capacity of the enterprise.  See also IT Infrastructure.
Infrastructure Service A service provided by IT to enable the delivery of business services, but not themselves directly adding value to business processes.  Normally treated as an overhead cost, although the overhead might be absorbed by specific business services.  The provision of corporate wide desktop facilities is a typical example of an infrastructure service, the provision of general strategic technological advice another.
Innovation The practical translation of ideas into new or improved products, services, processes, systems or social interactions.
Input Cost Types See Cost Types (Input).
Integration Testing Putting together all of the components, including the hardware and software, involved in a Change, as they will exist in the live infrastructure, to ensure that they work together.
Integrity Completeness and soundness.  Maintaining these will require the protection of data from unauthorised Change.  Also the consistency of data and linkages between data in a database (referential integrity).
Intelligent Customer A term used to describe the situation where a Customer of IT services has all of the abilities to enable the successful planning, specification, acquisition, implementation and use of IS/IT to achieve business objectives at best value for money.  Also referred to as an 'Informed Customer'.
Interactive Processing Processing that involves accepting input from a human.  Interactive computer systems are programs that allow Users to enter data or commands.  Most popular programs, such as word processors or spreadsheet application are interactive.  Non-interactive processing such as Batch Processing requires no further end-user contact once started.
Interactive Voice Response A form of Automatic Call Distribution that uses computing and telecommunications technology to provide callers, in the better applications, with choice and control over the routing of their call.  Although disliked by some, particularly the poorly designed systems, a growing proportion of callers now expect to be able to transact business through an IVR system when they choose to do so.  Although some calls are undoubtedly more suited to 'live' interaction, at other times IVR may be more appropriate because it allows Customers to complete transactions faster, at any time of the day or night, without having to wait in a queue.
Interface Physical or functional interaction at the boundary between CIs.
Intermediate Recovery Alternatively known as 'Warm Stand-by/Start', this IT Service Continuity option typically provides for the recovery of services in a contingency situation within 24 to 72 hours.  It is used by organisations that need to recover IT facilities within a predetermined time in order to prevent business processes being severely impacted by the failure.  See also Gradual Recovery, Immediate Recovery.
Internal Measure See Internal Target.
Internal Specsheet A working document that enables the SLM function to detail exactly what the IT department and its suppliers must do to deliver a service to a Customer.
Internal Target One of the measures against which supporting processes for the IT service are compared.  Usually expressed in technical terms relating directly to the underpinning service being measured.
Internet Protocol Originally specified in 1981 for the Defense Advanced Research Projects Agency (DARPA), the IP is designed for use in interconnected systems of packet-switched computer communication networks.  The IP provides for transmitting blocks of data called datagrams from sources to destinations, where sources and destinations are hosts identified by fixed length addresses.  The IP also provides for fragmentation and resonably long datagrams, if neccessary, for transmission through 'small packet' networks.
Inventory Management A subset of Configuration Management that focuses on the management (control and financial accounting) of the most expensive or attractive CIs in the IT infrastructure.  See also Asset Management, Configuration Management.
Investment Appraisal The process of determining what financial benefits might arise from investing in changes to IT service quality or quantity.  See also Capital Investment Appraisal.
Invocation In IT Service Continuity Management terms, the initiation of the disaster recovery process.
Invocation and Recovery Phase The second phase of a business recovery plan.
Invocation of Business Recovery Plans Putting business recovery plans into operation after a business disruption.
Invocation of Stand-by Arrangements Putting stand-by arrangements into operation as part of business recovery activities.
Invoicing See Billing.
IP Telephony See Voice over Internet Protocol.
Ishikawa Diagram See Cause / Effect Diagram.
ISO 9000 Guidelines and assurances of process and procedure standards for qulaity assurance systems.  The current version of ISO 9000 is ISO 9000:2000
ISO/IEC 17799-2000 See BS 7799-1:2000.
IT Accounting The set of processes that enable the IT organisation to fully account for the way its money is spent.
IT Accounting System A set of interrelated activities, policies and tools, which is used to budget, track and charge for IT services.
IT Availability Metrics Model A framework used to measure the availability, reliability, maintainability and response time of a service for several categories of infrastructure, application and Customer.
IT Infrastructure All of the CIs that are needed to deliver IT services to customers.  The IT Infrastructure consists of more than just hardware and software.  See also Infrastructure.
IT Infrastructure Domain A logical means of dividing the overall IT infrastructure into components of related functionality. There are three physical domains - mainframe, network and (end) user. In this context the 'mainframe' domain may include mini-computers. The (end) user domain covers terminals and local processors to which end users have everyday physical access and over which they have some degree of direct control.
IT Infrastructure Library What this site is all about.  The collection of volumes produced by the UK Office of Government Commerce (previously CCTA) that describe IT Service Management best practice.  The library is intended to assist organisations to provide quality IT service in the face of budgetary constraints, skill shortages, system complexity, rapid change, current and future User requirements and growing User expectations.

Originally produced in the late 1980s - early 1990s as a set of more than forty volumes, at the heart of the latest issue of the library is a set of six books: Service Support and Service Delivery provide advice on how to manage the core processes of IT Service Management; Planning to Implement Service Management explains the steps neccessary to identify how an organisation might expect to benefit from ITIL, and how to set about reaping those benefits, ICT Infrastructure Management covers Network Service Management, Operations Management, Management of Local Processors, Computer Installation and Acceptance, and for the first time, Systems Management; and Applications Management embraces the Software Development Lifecycle, expanding the issues touched on in Software Lifecycle Support and Testing of IT Services.  Applications Management also provides more detail on Business Change with emphasis being placed on clear requirement definition and implementation of solutions.  Finally, The Business Perspective volume deals with fully understanding the nature of IT service provision and covers Business Continuity Management, Partnerships and Outsourcing, Surviving Change and Transformation of Business Practices through Radical Change.  See also Service Support, Service Delivery.

IT Service A set of related components provided in support of one or more business processes.  The service will comprise a range of CI Types but will be perceived by Customer and Users as a self-contained, single, coherent entity.
IT Service Continuity Management The process of assessing and managing risks to IT services by examining CI values, threats and vulnerabilities, developing appropriate countermeasures, creating an IT Service Continuity plan, and managing any disaster situations that occur.  See also Business Continuity Management.
IT Service Continuity Plan A plan detailing actions and procedures to be followed by IT in the event of a disaster.  See also Business Continuity Planning.
IT Service Continuity Planning The process of developing testing and maintaining a plan for use in the event of a disaster - a subset of IT Service Continuity Management.  See also Business Continuity Planning
IT Service Management The principles and practices of designing, delivering and maintaining IT services, to an agreed level of quality, in support of a Customer activity.
IT Service Management Forum Founded in the UK in 1991, the itSMF is the only internationally recognised and independent body dedicated to professional IT Service Management.  IT is a not-for-profit organisation, wholly owned and principally operated by its membership.  Originally formed as the IT Infrastructure Forum (ITIMF), the name was changed in 1997 in order to reflect more accurately the organisations's focus.  There are active national 'chapters' of itSMF throughout the world.

The itSMF is a major influence on and contributor to Industry Best Practices and Standards worldwide, working in partnership with such organisations as the OGC (the UK government advisory body), the BSi and number of national and international Examination Boards.

Iterative Activities This term refers to the activities of Monitoring, Analysing, Tuning and Implementing that form the day-to-day management performance within Capacity Management.

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