Hammock activity

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A hammock activity (also hammock task) is a schedule or project planning term for a grouping of tasks that "hang" between two end dates it is tied to. [1] [2] [3] [4]

A hammock activity can group tasks that are not related in the hierarchical sense of a Work Breakdown Structure, or are not related in a logical sense of a task dependency, where one task must wait for another. [5]

Usage includes:

The duration of the hammock activity (the size of the hammock) may also be set by the subtasks within it, so that the abstract grouping has a start date of the earliest of any of the subtasks and the finish date is the latest of any of the contents.

A hammock activity is regarded as a form of Summary activity [6] that is similar to a Level of Effort (LOE) activity. [7] [8] Use of hammock activities is also a way to simplify the difficulties of performing Work Breakdown Structure decomposition to low levels. [9] Also, hammock tasks can represent any group of tasks in the Integrated Master Schedule (IMS) regardless of their physical location or parent Work Breakdown Structure (WBS) element. [10]

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References

  1. "COST ENGINEERING TERMINOLOGY, AACE® International Recommended Practice No. 10S-90" . Retrieved 10 June 2014.
  2. "A Glossary of Project Management Terms".
  3. "How to Build a Hammock Task".
  4. "Project Management Knowledge Summary" . Retrieved 10 June 2014.
  5. "Project Management Questions - Hammock Activity" . Retrieved 27 Apr 2016.
  6. A Guide to the Project Management Body of Knowledge (PMBOK Guide) (4th ed.). Project Management Institute. 2009. p.  450. ISBN   978-1933890517.
  7. ""Level of Effort" in Primavera P6" . Retrieved 10 June 2014.
  8. "Level of Effort Activity - Primavera P6 step by step tutorial" . Retrieved 10 June 2014.
  9. Kerzner, Harold (March 2009). Project Management: A Systems Approach to Planning, Scheduling, and Controlling (10th ed.). Wiley. ISBN   978-0470278703.
  10. Manazanera, Ignacio (2013). "Planning & Scheduling References Book". p. 120. Retrieved 5 May 2017.