Notes Flashcards
What does it mean if your standard deviation for PERT estimating is within 2 deviation?
95% accuracy.
What does it mean if your standard deviation for PERT estimating is within 1 deviation?
you are 68% accurate.
What is a con of bottom up estimating?
takes a long time to do.
What is a con of analogous/top down estimating?
cost assignment is difficult.
What are constraints to consider when estimating activity durations?
law of diminishing returns, number of resources to use, theory of constraints/bottleneck, advances in tech, motivation of staff.
What are enablers
illustration of work associated with the task.
A checklist can be used for what in the schedule process?
To format the work package document
What should a work package document include?
describe work, quality check, completion measures.
4 things needed to create the schedule
schedules of people/vendors working the project
times they are unavailable and vacation time for project staff,
conflicting projects your team members are working,
schedules for materials and resources.
What are control accounts?
The first level of the WBS and are composed from the project charter.
What should be included in the project benefits management plan?
strategic alignment, timeframe for seeing benefits, benefit owner, success measures, metrics, assumptions, risks
How is 86% of a bell shaped curve represented
halfway between the top of the bell curve and the worst-case scenario.
What is Parkinson’s Law
statistical observation of economics. The demand expands to match the supply.
What are the 4 dependency types?
mandatory/hard logic, discretionary/soft logic, external, and internal.
What is the best practice dependency type to use?
discretionary/soft logic
What are the 4 types of predecessor relationships?
Finish to start
Finish to finish
Start to start
Start to finish
Define a finish to start predecessor relationship
must finish one task before another can begin.
define a finish to finish predecessor relationship
2 or more activities need to finish before the next starts
define a start to start predecessor relationship
when one activity finishes, 2 or more activities can begin
define a start to finish predecessor relationship
successor activity cannot finish until the predecessor has started.
True or false: an activity’s Total Float can either be greater than or equal to Free Float
true
True or False: free float can be larger than its value for total float?
False. Free Float can never be larger than its value for Total Float
What does it mean if the total float is negative?
the project cannot be finished at the desired time without changing the logic or durations
Another name for a Gantt chart
- Logic bar chart
What is a summary schedule?
reflects the work package level summary of resource days
What is a hammock schedule?
displays at the control account level
What is a last resort for solving bottlenecks in the schedule?
break the critical path
What does VVBs stand for?
validation/verification bodies
What is the role of VVBs?
qualified, independent third-party auditors who are experts in the scope or technical area they audit.
What is VBS?
Value Breakdown Structure
What is the critical chain method?
looks mainly at bottlenecks and probable interrelated risks. Uses resource buffers to these areas of concern and leaves a buffer at the end of the project.
2 methods to account for contingencies in the schedule
either add 10-15% to each step OR add time for the entire due date.
Input to create the scope baseline
The WBS. Scope baseline is the aggregate of all work packages
What should be included in a team charter?
statement of team values, agreements, and practices. Guidelines for communication, communication tools, decisions making process, conflict resolution process, and meeting schedule.
RAM chart
responsibility assignment matrix
RACI/RICA
RAM chart with intelligence
What does a RACI chart map?
charts responsibility, accountable, consulted, informed.
A RACI can also be used to…
Evaluate if each component is needed for the project.
4 types of cost
- Direct
- Indirect
- Fixed
- Variable
Example of variable cost
labor and materials