Scheduling

Question 1

Direct Cost

Answer 1

Anything that associated w/ discreet physical part of project
Ex. labor, material, equipment

Question 2

Indirect Cost

Answer 2

Anything that can’t be associated w/ discreet physical part of project
Ex. Utilities, overhead expenses, salaries

Question 3

Total Float (TF)

Answer 3

Max. delay of ES without affecting the overall project duration

Question 4

Free Float (FF)

Answer 4

Max. delay of ES without affecting ES of any succeeding acitivity

Question 5

Interfering Float (IF)

Answer 5

Delay of acitivity’s ES in the preceeding activity used up

Question 6

Critical Path (CP)

Answer 6

• Path w/ the longest duration
• Defines project duration

Question 7

Logical Limit

Answer 7

of days to reduce before creating another critical path

Question 8

Physical Limit

Answer 8

Most # of days to reduce as possible

Question 9

Work breakdown structure (WBS)

Answer 9

Identify specific activities of work required

Question 10

Non-network schedule

Answer 10

Gantt Chart
- hard to show effects of delays and changes

Question 11

Network Schedule

Answer 11

1. CPM (Critical Path Method)
   - ex. AOA / AON
2. PERT (Program Evaluation and Review Technique)

Question 12

AOA diagrams

Answer 12

• Arrow = Activities
• Node = Points in time
• Dummy arrows

Question 13

AON diagrams

Answer 13

• Arrow = Relationship v activities
• Node = Activities

Question 14

Why level resources?

Answer 14

• to complete project w/ available resources
• to avoid crew over allocation + conflict

Question 15

Why crash schedule?

Answer 15

• save time and money
• make up time on project

Question 16

Cost slope formula

Answer 16

(Crash cost - Direct cost) / Crash duration

Question 17

Early Start (ES)

Answer 17

Lastest EF of all IPA

Question 18

Early Finish (EF)

Answer 18

ES + Dur

Question 19

Late Start (LS)

Answer 19

LF - Dur

Question 20

Late Finish (LF)

Answer 20

Earliest LS of succeding activity

Question 21

Steps of schedule crashing

Answer 21

1. Forward/Backward pass
2. Find CP and Critical activities
3. Find next longest path
4. Find critical activity w/ the lowest cost slope
5. Find logical/physical limit
6. Crash schedule
7. Recalculate forward/backward pass
8. Find indirect/direct/total cost

Question 22

What are the steps of resource leveling on MS project

Answer 22

1. Assign available resources/resource limit
2. Level resources within available slack
3. If not, level resources outside available slack

Question 23

When levelling resources, which activities have priority?

Answer 23

Activities w/ the earliest LS

Question 24

Steps of manual resource leveling

Answer 24

1. Assume there’s no labour limit and calculate project dur.
2. Determine max. required resource
3. Find LS
4. Find resource limit and make resource levelling table