Work Breakdown Structure
Links
See http://www.workbreakdownstructure.com/ - explicit time guesses, then verify time guesses - so you can learn from it.
A work breakdown structure is a deliverable-oriented decomposition of a project into smaller components.
A diagram or a tool like Scrumy can be used.
See example at http://en.wikipedia.org/wiki/Work_breakdown_structure
See also Scientific Management. Scientific Management was replaced with 6 Sigma and lean sigma.
Universal Axis Example
2" Universal Axis Work Breakdown Structure
