| Tactical |
Concerned
with the middle level of
planning and delivery.
Tactical concerns are around how
to achieve an objective (as
developed in the strategy) and
providing a framework for the
operational delivery. |
|
|
| Task |
Generically,
an activity or set of activities
that might be defined as part of
a process. When used
within a phrase such as
'Standard Operational Task' it
defines a well documented,
controlled, proceduralised, and
usually low risk,
activity. The procedure
controlling the manner in which
the task is carried out would be
subject to formal Change
Control. |
|
|
| Technical
Observation Post |
A
prearranged meeting of
specialist technical support
staff from within the IT support
organisation brought together to
focus on specific aspects of IT
availability. |
|
|
| Technical
Severity |
A
simple code assigned to
Incidents, Problems and Changes,
indicating their underlying
technical complexity and their
impact on technical
resources. Used in
conjunction with Business Impact
and Urgency, it is one of the
factors for allocating IT
priorities. |
|
|
| Terms
of Reference |
A
document that usually describes
the purpose and scope of an
activity or requirement. |
|
|
| Test
/ Test Build Environment |
A
computer system or discrete part
of a computer system (made up of
hardware, system software and
documentation) which is used to
build releases for operational
acceptance testing. |
|
|
| Third
Line Support |
Those
supplying Second Line teams when
they are unable to resolve the
issues. |
|
|
| Third
Party Supplier |
Those
external to an enterprise who
provide products and/or services
that contribute to the overall
service provided to Customers. |
|
|
| Thrashing |
A
condition in a virtual storage
system where an excessive
proportion of CPU time is spent
moving data between main and
auxiliary storage. |
|
|
| Threats |
The
possible cause of disruption
that might prevent the delivery
of services. Threats act
upon the assets of an
organisation or a service. |
|
|
| Threshold |
A
pre-determined level at which
action is taken, e.g. the number
of occurrences of Incidents
attributable to a single Problem
or Known Error, the time that an
occurrence is outstanding, or
usage levels, at which point
some form of escalation
procedures are invoked. |
|
|
| Throughput |
The
volume of work performed on a
system or device by the
users. Sometimes referred
to as Workload. |
|
|
| Tied
Users |
Users
who do not have a choice about
whether they use the internal IT
department's services or not. |
|
|
| Total
Cost of Ownership |
All
the financial consequences of
owning an asset. In
addition to the initial purchase
price this would typically also
include maintenance,
accommodation charges,
opportunity costs, training
costs, consumables, internal and
external support, interest on
capital, etc. See also Full
Cost. |
|
|
| Total
Quality Management |
Total
Quality Management is a
structured system for satisfying
internal and external Customers
and suppliers by integrating the
business environment, continuous
improvement and breakthroughs
with development, improvement,
and maintenance cycles while
changing organisational culture. |
|
|
| Transaction
Processing |
A
type of computer processing in
which the computer responds
immediately to User requests,
with each User interaction
considered to be a
transaction. Automatic
teller machines for banks are
probably the best-known example. |
|
|
| Transfer
Cost |
Transfer
Costs represent the costs of
goods and services 'sold' from
one part of an organisation to
another, often within a
multi-national or other large
organisation with a
sophisticated internal
accounting system.
Transfer Costs must be visible
in Cost
Models if the true cost of
providing services is to be
calculated. |
|
|
| Tree
Structure |
In
data structures, a series of
connected nodes without cycles.
One node is termed the root and
is the starting point of all
paths, other nodes termed leaves
terminate the paths. It can be
used to represent hierarchical
structures, such as CIs. |
|
|
| Trend
Analysis |
The
process of analysing data to
identify underlying longer-term
trends e.g. failure
patterns. Used in Incident
and Problem Management, it is
also employed as a method of
modelling in Capacity
Management. |
|
|
| Trouble
Ticket |
A
term used in a number of Service
Support tools, analogous but not
normally directly equivalent to
the more precise ITIL terms
Incident and Problem. |
|
|
| Tuning |
The
process of changing the
parameters of a device or a
system to achieve a specified or
improved performance. |
|
|
| Two-Tier
Architecture |
See
Client-Server
Architecture. |
