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ANALYTICAL ESTIMATING
Analytical estimating is a structured, estimating (work
measurement) technique in which a task is analysed into its
basic component operations or elements. Standard times, where available
from another source, are applied to these elements. Where no such times
are available, they are estimated based on experience of the work under
consideration. The estimating is carried out by a skilled and experienced
worker who has had additional training in the process of estimating and
who simply estimates the time that would be required by a fully competent
and experienced worker, working at a defined level of performance.
The analysis into elements is a key factor in producing
reliable times, since, while time estimates for individual elements may
be "inaccurate", any errors are random and will compensate for each other.
Additionally, since the technique is normally used for assessing workloads
over a reasonably long planning period, errors in individual tasks will
also cancel each other out.
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