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A service-level agreement can track multiple performance metrics. In this context, these metrics are called service level indicators (SLIs). The target value of a given SLI is called a service-level objective (SLO). In IT-service management, a common case is a call center or service desk. SLAs in such cases usually refer to the following SLIs:
An operational-level agreement (OLA) defines interdependent relationships in support of a service-level agreement (SLA). [1] The agreement describes the responsibilities of each internal support group toward other support groups, including the process and timeframe for delivery of their services.
A service-level objective (SLO), as per the O'Reilly Site Reliability Engineering book, is a "target value or range of values for a service level that is measured by an SLI." [1] An SLO is a key element of a service-level agreement (SLA) between a service provider and a customer. SLOs are agreed upon as a means of measuring the performance of ...
Security requirements defined in service level agreements (SLA) and other external requirements that are specified in underpinning contracts, legislation and possible internal or external imposed policies. Basic security that guarantees management continuity. This is necessary to achieve simplified service-level management for information security.
ITIL (previously and also known as Information Technology Infrastructure Library) is a framework with a set of practices (previously processes) for IT activities such as IT service management (ITSM) and IT asset management (ITAM) that focus on aligning IT services with the needs of the business.
In information technology, a service level indicator (SLI) is a measure of the service level provided by a service provider to a customer. SLIs form the basis of service level objectives (SLOs), which in turn form the basis of service level agreements (SLAs); [ 1 ] an SLI can be called an SLA metric (also customer service metric , or simply ...
'Normal service operation' is defined here as service operation within service-level agreement (SLA). It is one process area within the broader ITIL and ISO 20000 environment. ISO 20000 defines the objective of Incident management (part 1, 8.2) as: To restore agreed service to the business as soon as possible or to respond to service requests. [14]
A service desk is a primary IT function within the discipline of IT service management (ITSM) as defined by ITIL. It is intended to provide a Single Point of Contact (SPOC) to meet the communication needs of both users and IT staff, [7] and also to satisfy both Customer and IT Provider objectives.