Zusammenfassung der Ressource
SAB9#58_59_Types_Relation_Activities_&_Types_Estimations
- PDM
(Precedence
Diagramming
Method)
Anmerkungen:
- or Activity-on-Node (AON)
- Finish to Start (FS)
Anmerkungen:
- one thing needs to end before the next can begin
- Start to Start (SS)
- activities begin at the same time
- Finish to Finish (FF)
- These two finish at the same time
- Start to Finish (SF)
Anmerkungen:
- This dependency is rarely used
- An activity must star before the successor can finish
- Types of Dependencies
- External dependencies
- Sometimes your project will depend on
things outside the work you are doing
- Discretionary
dependencies
(Preferred, Preferential,
SOFT Logic)
Anmerkungen:
- 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
Anmerkungen:
- Is often not the best method to use
- Expert judgment
- Historical information
- Analogous
Estimating
(Top-down)
Anmerkungen:
- 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
Anmerkungen:
- Parametric
Estimating
Anmerkungen:
- -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
- Learning curve
- Heuristics
- a generally accepted rule, or best practice
- Three-Point
Estimating
- Triangular
Distribution
(Simple Average)
- equal weight
- Beta Distribution
(Weighted
Average)
- gives stronger
consideration to
the most likely
- Standar Deviation
- the possible range
for estimate
- Group
Decision
Making
Anmerkungen:
- brainstorming
- the nominal group technique
- Delphi technique
- anonymous
- external experts
- Reserve
Analysis
- contingency reserves
Anmerkungen:
- are included in the project schedule baseline
- identified schedule risks
- management reserves
Anmerkungen:
- unforeseen risks