SAB9#58_59_Types_Relation_Activities_&_Types_Estimations

Annotations:

• or Activity-on-Node (AON)

1. Finish to Start (FS)

   Annotations:

   • The most common
   1. one thing needs to end before the next can begin
2. Start to Start (SS)
   1. activities begin at the same time
3. Finish to Finish (FF)
   1. These two finish at the same time
4. Start to Finish (SF)

   Annotations:

   • This dependency is rarely used
   1. An activity must star before the successor can finish

1. External dependencies
   1. Sometimes your project will depend on things outside the work you are doing
2. Discretionary dependencies (Preferred, Preferential, SOFT Logic)

   Annotations:

   • you should set discretionary dependencies based on your knowledge of the best practices for getting the job done
   1. it’s just a matter of preference.
3. Mandatory dependencies (HARD Logic)
   1. Mandatory predecessors are the kind that have to exist just because of the nature of the work
4. Internal dependencies
   1. Some dependencies are completely within the team’s control

Annotations:

• Is often not the best method to use

1. Expert judgment
2. Historical information

Annotations:

• Advantages---------  -allows for quick calculation -less expensive Disadvantages-------  -This technique can be problematic -It can force people into padding their estimates

1. Expert judgment
2. Historical information

   Annotations:

   • previous projects

Annotations:

• -more accurate than analog -The results of parametric estimating can become heuristics 

1. Historical information
2. Relationships between variables
   1. Regression analysis (scatter diagram)
      1. 2 variables to see if they are related and creates a mathematical formula
   2. Learning curve
3. Heuristics
   1. a generally accepted rule, or best practice

1. Triangular Distribution (Simple Average)
   1. equal weight
2. Beta Distribution (Weighted Average)
   1. gives stronger consideration to the most likely
   2. Standar Deviation
      1. the possible range for estimate

Annotations:

• team members

1. brainstorming
2. the nominal group technique
3. Delphi technique
   1. anonymous
   2. external experts

1. contingency reserves

   Annotations:

   • are included in the project schedule baseline
   1. identified schedule risks
2. management reserves

   Annotations:

   • additional funds
   1. unforeseen risks