Information Technology Reference
In-Depth Information
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Term
Explanation
Performance
An attribute set that describes measurably 'how good' the system is at
delivering effectiveness to its stakeholders
Performance
Constraint
Specifies some upper and lower limits for an elementary scalar
performance attribute
Performance
Requirement
Specifies the stakeholder requirements for 'how well' a system should
perform
Performance Target
Is a stakeholder-valued numeric level of system performance
Place
Defines where
Planguage
Tom Gilb A specification language and a set of related methods for
systems engineering
Priority
The determination of a relative claim on limited resources
Procedure
A repeatable description to instruct people as to the best-known practice, or
recommended way, to carry out the task of a defined process
Process
Is a work activity which consists of an entry process, entry conditions, a
task process, and an exit process
Q
Qualifier
A defined set of conditions embedded in, or referenced by, a specification
Quality
A scalar attribute reflecting 'how well' a system functions
Quality Level
A measure of a specification's conformance to any specified relevant
standards
R
Range
The extent between and including two defined numeric levels on a scale of
measure
Rationale
The reasoning or a principle that explains and thus seeks to justify a
specification
Readership
The readership of a specification is all the 'types of people' we intend shall
read or use the specification
Record
A parameter used to inform us about an interesting extreme of achievement
Relationship
A connection between two objects
Requirement
A stakeholder-desired, or needed, target or constraint
Requirement
Engineering
A requirement process carried out with an engineering level of rigor
Requirement
Specification
A defined set of requirements
Resource
Any potential system input (time, money, effort, space, data and any other)
Resource Constraint
A resource requirement, which specifically restricts or serves as a warning
about the level that can be used of a resource
Resource
Requirement
Specifies how much of a resource should be made available for later
consumption
Resource Saving
A performance attribute of a system
Resource Target
It is a budget.
Review
Any process of human examination of ideas with a defined purpose and a
defined standards of inquiry
Risk
Any factor that could result in a future negative consequence
Role
A defined responsibility, interest, or scope for people
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