you should set discretionary dependencies based on your knowledge of the best practices for getting the job done
it’s just a matter of preference.
Mandatory
dependencies
(HARD Logic)
Mandatory predecessors are the kind that have to
exist just because of the nature of the work
Internal dependencies
Some dependencies are completely within
the team’s control
One-Point
Estimating
Nota:
Is often not the best method to use
Expert judgment
Historical information
Analogous
Estimating
(Top-down)
Nota:
Advantages---------
-allows for quick calculation
-less expensive
Disadvantages-------
-This technique can be problematic
-It can force people into padding their estimates
Expert judgment
Historical information
Nota:
previous projects
Parametric
Estimating
Nota:
-more accurate than analog
-The results of parametric estimating can become heuristics
Historical information
Relationships
between variables
Regression analysis
(scatter diagram)
2 variables to see if they
are related and creates a
mathematical formula