Australian Government Architecture Reference Models Version 3.0

4.6.2 Ad hoc tasks
4201 Task efficiency
42 Ad-hoc tasks
A – Resource consumption
B – Time consumption
4202 Task safety
A – Risk
4203 Task complexity
A – Coverage
B – Usability
Figure 4-26: Tasks measurement branch
Measurement Area Rationale Defined by
[4201]
Task Efficiency
[4202]
Task Safety
[4203]
Task Complexity
Efficiency as an attribute of an
ad hoc task is an empirical
measure of how much time and
resource was consumed in
completing the task. Because of
the unstructured nature of ad hoc
tasks, using efficiency information
for process improvement or
input–output relationship analysis
is not possible or practical.
The safety of a task is a
measurement of the risk
exposure of the task to possible
negative outcomes that could be
realised through the completion of
the task.
Measurement of the complexity of
a task is a possible necessity in
the investigation of failed
outcomes, or the assessment of
risk that may be associated with a
business function.
A. Resource consumption
Quantitative measures of the volume of
resources consumed in the execution of an ad
hoc task. Resources include financial resources
(money), material resources (fuel, electricity
etc.) and labour (hours of effort).
B. Time consumption
Quantitative measures of the time taken to
complete an ad hoc task.
A. Coverage
Quantitative measurement of the number of
sub-tasks that a task is dependent upon for
completion. Sub-tasks are smaller elements of
work than the original task, and are completed
by different employees.
B. Usability
Qualitative measures of the degree of difficulty
experienced by employees learning how to do a
task and being able to complete it competently
and autonomously.
Australian Government Architecture Reference Models Version 3.0
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