operational database definition
<database> A database containing up-to-date, modifiable
data, in contrast to a decision support database.
(1995-02-14)
Nearby terms:
operating system « Operating System/360 « Operating System/Multiprogramming of Fixed Tasks « operational database » operational requirements » operational semantics » operational test and evaluation
operational requirements definition
<programming> Qualitative and quantitative parameters that
specify the desired capabilities of a system and serve as a
basis for determining the operational effectiveness and
suitability of a system prior to deployment.
(1997-01-07)
Nearby terms:
Operating System/360 « Operating System/Multiprogramming of Fixed Tasks « operational database « operational requirements » operational semantics » operational test and evaluation » operational testing
operational semantics definition
<theory> A set of rules specifying how the state of an actual
or hypothetical computer changes while executing a program.
The overall state is typically divided into a number of
components, e.g. stack, heap, registers etc. Each rule
specifies certain preconditions on the contents of some
components and their new contents after the application of the
rule.
It is similar in spirit to the notion of a Turing machine,
in which actions are precisely described in a mathematical
way.
Compuare axiomatic semantics, denotational semantics.
(1996-08-21)
Nearby terms:
Operating System/Multiprogramming of Fixed Tasks « operational database « operational requirements « operational semantics » operational test and evaluation » operational testing » operation code
operational test and evaluation definition
<testing> (OT&E) Formal testing conducted prior to deployment
to evaluate the operational effectiveness and suitability of
the system with respect to its mission.
(1997-01-07)
Nearby terms:
operational database « operational requirements « operational semantics « operational test and evaluation » operational testing » operation code » operations support technician
operational testing definition
<testing> A US DoD term for testing performed by the
end-user on software in its normal operating environment.
(1997-01-07)
Nearby terms:
operational requirements « operational semantics « operational test and evaluation « operational testing » operation code » operations support technician » operator
operation code definition
<programming> (Or "op code") The part or parts of a machine
language instruction which determines what kind of action the
computer should take, e.g. add, jump, load, store. In any
particular instruction set certain fixed bit positions
within the instruction word contain the op code, others give
parameters such as the addresses or registers involved.
For example, in a 32-bit instruction the most significant
eight bits might be the op code giving 256 possible
operations.
For some instruction sets, certain values in the fixed bit
positions may select a group of operations and the exact
operation may depend on other bits within instruction word or
subsequent words.
When programming in assembly language, the op code is
represented by a readable name called an instruction
mnemonic.
(1997-02-14)
Nearby terms:
operational semantics « operational test and evaluation « operational testing « operation code » operations support technician » operator » Operator Control Language
operations support technician definition
<job> A person who analyses and supports computer operations
by controlling production applications, monitoring system
resources and response time and providing first-line support
for operational problems.
(2004-03-20)
Nearby terms:
operational test and evaluation « operational testing « operation code « operations support technician » operator » Operator Control Language » operator overloading
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