Setup and Install

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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
describeperformanceandcapacity
requirements for a given service
hosted by the service provider.
The SLA will often specify any
penaltiesassociatedwith 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.
service-oriented request
classification - A request
classification that focuses on the
destination (specific module or
content) of a request.
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