文档介绍：By: Prof. Y. Peter Chiu
3 / 2003
Material Management
Class note # 5a: ( in review )
Project Scheduling & Management
1
■  Planning function at all levels of
anization
■  Poor project management
cost overruns
delay
■eg.
Launching new products
Organizing research projects
Building new production
facilities
§. P 1: Introduction to Project Management
◇
2
■  Critical Path Method (CPM)
~ deterministic problems
 ■ Project Evaluation and Review
Technique ( PERT )
~ randomness allowed in the activity
times.
§. P 2: mon techniques for Project Management
◇
3
(1). Project definition
~ clear statement
(2). Activity definition
~ project broken down into a
set of indivisible tasks
or activities
(3). Activity relationships
~ precedence constraints
(4). Project scheduling
~ starting & ending times
(5). Project monitoring
§. P 3 : Critical Path Analysis
◇
4
~ Gantt Chart does not show
the precedence constraints
among tasks
§. P 4 : Gantt Chart
-1
◇
5
■   can show the precedence
constraints
■   is a collection of nodes and
directed arcs
arc : activity
node : event ( start or
completion of a project)
  ■ Two conventional expressions:
Activity-on-arrow
Activity-on-node
§. P 5 : Network
◇
6
[ Eg. 9-2 ]
Activity Predecessors
A -
B -
C A
D B
E C , D
-2
◇
7
Activity Predecessors
A -
B -
C A
D A , B
E C , D
P
[ Eg. 9-3x ]
-4
◇
8
(1) The minimum time required to
complete the project ?
(2) Starting & ending times for
each activities ?
   (3)  What activities can be delayed
without delaying the entire
project?
§. P 6 : Common Questions about Project
◇
9
From -4 there are 3 paths
1-2-4-5 A-C-E
1-2-3-4-5 A-P-D-E
1-3-4-5 B-D-E
The Minimum time required to
complete the project = Longest path
Activity Time Predecessors
A -
B -
C A
D A , B
E C , D
[ Eg. 9-3x ]
◇
10