The amount of work or labor (in hours or work days) required to complete a task. Effort is used to establish the labor costs associated with a project. Effort is in contrast to duration, which is the span of time over which the effort takes place.

(Complete Idiot’s Guide to Project Management)

Other Definitions

Effort – The number of labor units necessary to complete the work . Effort is usually expressed in staff hours, staff days or staff weeks and should not be confused with duration .(Wideman Comparative Glossary of Common Project Management Terms v2.1 )

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J. Jerrald Hayes
I am ex-architectural woodworker and general contractor turned IT, Business and Project Management consultant, software developer wannabe senior division triathlete and ski racer, Yankee fan and founder of, 360 Difference, and now too.
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