6.4 Estimate Activity Durations (Schedule MGMT)

Question 1

what is 6.4 estimate activity durations?

Answer 1

estimating the number of work periods needed to complete individual activities with estimated resources

Question 2

what is the key benefit to 6.4 estimate activity durations?

Answer 2

provides the amount of time each activity will take to complete

Question 3

when is 6.4 estimate activity durations performed during a project?

Answer 3

throughtout

Question 4

6.4 estimate activity durations - inputs

Answer 4

1. project management plan (2)
2. project documents (10)
3. EEF
4. OPA

Question 5

what project management plan inputs are relevant for 6.4 estimate activity durations?

Answer 5

a. schedule management plan

b. scope baseline

Question 6

what project documents are relevant inputs for 6.4 estimate activity durations?

Answer 6

a. activity attributes
b. activity list
c. assumption log
d. lessons learned register
e. milestone list
f. project team assignments
g. resource breakdown structure
h. resource calendars
i. resource requirements
j. risk register

Question 7

what are factors for consideration in 6.4 estimate activity durations?

Answer 7

1. law of diminishing returns
2. number of resources
3. advances in technology
4. motivation of staff

Question 8

6.4 estimate activity durations - tools and techniques

Answer 8

1. expert judgment
2. analogous estimating
3. parametric estimating
4. three point estimating
5. bottom up estimating
6. data analysis (2)
7. decision making
8. meetings

Question 9

what is analogous estimating?

Answer 9

1. estimating duration or cost of an activity using historical data from similar activity or project
2. gross value estimating approach, sometimes adjusted for known differences in project complexity
3. used when there is limited amount of detailed information about the project

Question 10

what is parametric estimating?

Answer 10

uses a statistical relationship between historical data and other variables to calculate an estimate for an activity parameters such as cost, budget and duration

Question 11

what is three point estimating?

Answer 11

tE = time expected
tO = optimistic
tM = most likely
tP = pessemistic

tE = (tO + tM = tP) / 3

Question 12

what is bottom up estimating?

Answer 12

aggregating estimates of the lower level components of the WBS

Question 13

what data analysis tools and techniques are relevant for 6.4 estimate activity durations?

Answer 13

a. alternative analysis

b. reserve analysis

Question 14

what is reserve analysis?

Answer 14

• determine the amount of contingency and management reserve needed for the project

Question 15

6.4 estimate activity durations - outputs

Answer 15

1. duration estimates
2. basis of estimates
3. project document updates (3)

Question 16

what project document updates outputs are relevant for 6.4 estimate activity durations?

Answer 16

a. activity attributes
b. assumption log
c. lessons learned register