A Work Package (WP) is a group of related items which is a logical subdivision of control accounts that is a measurable and controllable unit of the system within the total scope of work. A WP can be a simple task, activity, group of works, or total project work that is developed based on the Work Breakdown Structure (WBS). A WP is defined as the lowest level that is to plan, measure progress, calculate earned values, and distinguish from others, single responsible organisation, assigns budget and limited duration, target to start and finish date. 

Related Definitions in the Project: The Construction; Project Management; Project Schedule; Work Breakdown Structure (WBS)