1. May 22, 2013
S- Curve

2. Agenda
Agenda
1. Introduction
2. Basis of S-Curve and Set-up
3. Interpretation
4. Questions

3. Introduction
What is S - Curve:
 Value Vs project time:
 Planning Value – Planning progress value
 Earned Value -- Actual progress value
 Actual Value -- Actual Spent value
Why we use S-curve:
 As a tool for project helthy check (status)
 As a tool for control of schedule and cost
 Forcast of completion ETC and EAC
What it is not:
 Not only for the PM (but also for company level of schedule and cost
monitoring)
 Not the only project control tool (shall together with schedule
control, cost control as well as man power plan etc.)

4. Set-up and use
Basis of S-curve
 Basis of Data:
 Cost baseline– Budget (BOQ with levels of WBS)
 Input Data:
 Progress data as percentage
 TBD Standard Tool:
 Already set as EPCM Tool :10.161.34.1PublicProject Tools MatrixEPCM
Project Tools_02Project MangementPM01 Project Plan

5. Set-up and use
How to Set- up
 Line 1- Planning Value Intial setup
 Distribute budget Vs Time and consist with master schedule
 Update of budget (only possible through approved DCN)
 Line 2- Earned Value timely update
 Earned Value or Actual progress, udpated as percentage.
 Line 3 – Actual Value
 Expenditure accumulated value ( invesigation cash flow)
 Forecast of completion
 Estimate to completion (ETC )
 Estimate at completion ( EAC)

6. Set-up and use
How to Set – up - sample
TASK
PLAN
BUDGET
%
COMPLETE
EV PV AV
Task A 1,000 100% 1,000 1,000 900
Task B 3,500 80% 2,800 2,500 2,200
Task C 2,500 60% 1,500 1,200 1,400
Task D 1,800 30% 540 400 200
Task E 700 5% 35 0 20
Task F 500 0% 0 0 0
TOTALS 10,000 5,875 5,100 4,720
0
650
1500
3000
5100
7200
8600
9400
10000
$0
$1,000
$2,000
$3,000
$4,000
$5,000
$6,000
$7,000
$8,000
$9,000
$10,000
1/1 1/16 1/31 2/15 3/2 3/17 4/1 4/16 5/1
Plan = BCWS Earned Value - BCWP ACWP

7.  How to use for analysis - sample
Set-up and use
Time
Status Point
Schedule Variance
EV - PV
$5875 - $5100
Ahead of Schedule
Earned Value
Schedule Status:
EV is higher than plan, the project is ahead of schedule

8.  How to use for analysis - sample
Set-up and use
Actual Cost :
- ahead of schedule ;
- under budget;
- is it a problem if AV>PV?
No! if EV>AV, it is may not be a problem.
Status Point
Cost Variance
EV - AV
$5875 - $4720
Time
Below Budget

9. 0
5,000,000
10,000,000
15,000,000
20,000,000
25,000,000
30,000,000
ProgressValue
Sample Construction Progress Analysis - XXXX Yangzhou Recycling Plant
Planning value($)
Earned Value($)
Actual Value(Cash Flow).($)
Project Controls - Construction
Progress Curve Sample

10. 0
5,000,000
10,000,000
15,000,000
20,000,000
25,000,000
30,000,000
ProgressValue
S-curve - Metallkraft Yangzhou Recycling Plant
施工进程——麦拓卡夫特扬州回收工厂
Planning value($)
Earned Value($)
Actual Value(Cash Flow).($)
Sample Case of
S-curve

11. Explanation
Axis
 X-axis time line
 Y-axis Progress --- RMB or $
3 Lines
 Planning Value (PV) - Planned progress
 Earned Value (EV) - Actual progress
 Actual Value (AV) - Spent progress
Manpower plan

12. Other Highlights
 The S – Curve is currently majorly as tools used for
monitoring the schedule status in construction stage.
• For cost status including ETC,EAC etc., it is included in Detailed
Cost Report ( which is already as TBD standard EPCM document
)
• For schedule control, it will be detailed in schedule control process.

13. Questions