项目管理之进度计划

PM07.2 V2.1
Iterative Nature of Planning
Goal Statement
Budget Work Estimates Risks
Schedule
Resources Project Baseline
PM07.3 V2.1
Scheduling Steps

1
C
4
5 8
0
9 14
PM07.14 V2.1
Exercise
Calendar forward and backward pass
B D
5
1
A
3
F
2
C
4
E
6
Use this year’s calendar Project Start Date = May 15
PM07.15 V2.1
Non-PDM Constraints
Duration
EF
LS
Slack/Float
LF
PM07.9 V2.1
Example: Precedence Diagram
2 21 1.3.1.1 20 Code Scheduler P 0 2 21 1 1 1.2.3 1 Phase Transition Rev. All 0 1 1 2 12 1.3.2.1 11 Code Safety Interlock D 11 13 23
PM07.6 V2.1
Critical Path Method
C A B D
E F
PM07.7 V2.1
Precedence Diagram
SF
F C
G J
A
B
H
K
SS
FF
D
E
I
PM07.8 V2.1
Labeling Activity Nodes
ES
Activity-Identifier Activity Description Responsible Person
Scheduling
Fitting it all together into a timeline
Objectives
Identify tools and techniques used to schedule projects Describe the scheduling process Use the Precedence Diagram Method to develop network diagrams : PERT Integrate resources into the scheduling process
PM07.11 V2.1
Non-Calendar Forward Pass
4
B
8
5
9 9
D
1
1
A
3
3
15 16
F
2
4
C
7
4
9 14
E
6
Consecutive Work Days Early start dates
PM07.12 V2.1
Backward Pass
4
B
8
5
9
D
9
1
1 3
A
3
4
4
C
8
• Frederick Brooks The Mythical Man-Month
PM07.4 V2.1
Project Scheduling Tools
Network Diagram Gantt Chart Histograms / Loading Charts
PM07.5 V2.1
Diagramming Techniques
CPM - Critical Path Method PDM - Precedence Diagramming Method
Calendars
Project Personal
Activity Constraints Resource Availability
PM07.16 V2.1
Gantt Chart
Tasks
Time
PM07.17 V2.1
Typical Staff Loading Curve
10 12 1.3.3.2 3 Unit Test Update PS P 15 25 27
ES
EF ID DUR Activity Description SKILL SLACK LS LF
Critical Path
PM07.10 V2.1
PDM Diagram
B 5
D 1
A 3
F 2
C 4
E 6
People
2
4
6
8 Time
10
12
14
PM07.18 V2.1
Alternative Staff Loading Curves
People
2
4
6
8
10
12
14 Time
“Person months and people are not interchangeable.” “You cannot complete the project in half the time by doubling the people.”
Determine Task Dependencies Draw a Network Diagram Calculate the Critical Path Schedule Integrate Milestones into schedule Integrate Resources into schedule The first result is probably not the best one: this is an iterative process and needs to be repeated every time the estimates or the development environment changes
22 27 1.3.1.2 6 Unit Test Scheduler P 0 22 27 13 16 1.3.2.2 4 Unit Test Safety Interlock P 11 24 27 28 37 1.4.1 10 Thread Test T 28 0 37
2 9 1.3.3.1 8 Code Update PS D 15 17 24
7
4Fra Baidu bibliotek
14 14
9 14
E
6
15 16
F
2
1 3
15 16
5
8
9 14
Consecutive Work Days Late start dates
PM07.13 V2.1
Difference is Slack
4
8
B
5
9 9
D
1
0
1 3
5
15 16
F
2
4
8
14 14 9 14
E
6
0
A
3
0
1 3
4 7
15 16