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 )

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 Paradigm-360.com, 360 Difference Mac4Construction.com,iOS4Construction.com and now TheBuildingAndRemodelingWiki.com too.
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