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service component - A component that provides business specific data or processing rules. Examples include Internet service sites (for example, web sites, ftp sites), databases, business logic modules, business specific rules and scripts, and so on.
Service Control Agent (SCA) - Collects management information from the Service Resource Controller and management control directives from the Service Control Operator. Applies configuration information to WebQoS nodes. Detects problems, monitors operation information, and gives feedback to the SCO. This information is displayed by the management user interface.
Service Control Operator (SCO) - Manages components on a local or remote system. Transmits commands and responds to requests from managed components via the Service Control Agent (SCA) that is installed on each WebQoS system.
Service Level Agreement (SLA) - A negotiated agreement between service providers (or information technology) and businesses or business divisions. SLAs contain one or more service level objectives (SLOs) that describe performance and capacity
requirements for a given service hosted by the service provider. The SLA will often specify any penalties associated with violation of the objectives.
Service Level Objective (SLO)
-A performance (response time), capacity, or availability objective for a service. Typically, there are several SLOs, each stating a very specific objective, possibly tied to a particular request classification rule. Action policies state corrective actions that may be taken when a SLO is in jeopardy.
session - In WebQoS, a session is composed of one or more requests to a web site. These requests may arrive over one, or possibly several connections. Once a session has been granted, a user’s remaining requests are guaranteed to be forwarded to the web server, unless the session times out. Under periods of heavy system load, it is possible that new sessions will not be granted. (This is driven by your specific policies.) However, existing sessions continue uninterrupted.
session deferral - The postponement of the servicing of a user request. Session deferral is