Example 5.1: Line-Printer Network Diagram
This example uses the data set WIDGET that was used in
Example 2.2 in Chapter 2, "The CPM Procedure," to illustrate
the Activity-on-Node representation
of the project. The following program invokes
PROC NETDRAW twice.
First, the Activity data set WIDGET is used as input to
the procedure. The activity and successor information is identified
via the ACTIVITY= and SUCCESSOR= options in the ACTNET statement.
The LINEPRINTER option is specified, producing the
line-printer network diagram shown in Output 5.1.1.
/* Activity-on-Node representation of the project */
data widget;
input task $ 1-12 days succ1 $ 19-30
succ2 $ 33-44
succ3 $ 47-58;
datalines;
Approve Plan 5 Drawings Anal. Market Write Specs
Drawings 10 Prototype
Anal. Market 5 Mkt. Strat.
Write Specs 5 Prototype
Prototype 15 Materials Facility
Mkt. Strat. 10 Test Market Marketing
Materials 10 Init. Prod.
Facility 10 Init. Prod.
Init. Prod. 10 Test Market Marketing Evaluate
Evaluate 10 Changes
Test Market 15 Changes
Changes 5 Production
Production 0
Marketing 0
;
title 'Widget Manufacture';
options ps=32 ls=78;
proc netdraw data=widget lineprinter;
actnet / activity=task successor=(succ1 succ2 succ3);
run;
Output 5.1.1: Line-Printer Network Diagram
|
-------------- --------------
-->|Drawings |--- -->|Materials |---
| -------------- | | -------------- |
| | | |
| | | |
| | |------------------+--
| | | |
| | | |
-------------- | -------------- | -------------- | -------------- |
|Approve Plan|--+->|Write Specs |---->|Prototype |--+->|Facility |---->
-------------- | -------------- -------------- | --------------
| |
| |
| |
| |
| |
| -------------- -------------- |
-->|Anal. Market|---->|Mkt. Strat. |------------------------
-------------- --------------
|
--------------
-->|Test Market |---
| -------------- |
| |
| |
----------------| |
| |
| |
-------------- | -------------- | -------------- --------------
|Init. Prod. |--+->|Evaluate |---->|Changes |---->|Production |
-------------- | -------------- -------------- --------------
|
|
|
|
|
| --------------
------------------>|Marketing |
--------------
|
|
Next, PROC CPM is invoked to schedule the project, and the
resulting Schedule data set is used as input to the NETDRAW
procedure. In addition to the ACTIVITY= and SUCCESSOR= options,
the DURATION= option is used in the ACTNET statement. The DURATION=
option adds the values of the DURATION variable
within each node of the network. The procedure also displays the
values of the E_START, E_FINISH, L_START,
L_FINISH, T_FLOAT, and F_FLOAT variables within
each node. The network is
displayed in Output 5.1.2.
proc cpm data=widget out=sched
date='2dec91'd;
activity task;
successor succ1 succ2 succ3;
duration days;
run;
options ps=45 ls=90;
title2 'Schedule Information';
proc netdraw data=sched lineprinter;
actnet / activity=task
successor=(succ1 succ2 succ3)
duration = days;
run;
Output 5.1.2: Project Schedule
|
| Widget Manufacture |
| Schedule Information |
-------------------------
|Drawings Dur:10|
-->|ES:07DEC91 EF:16DEC91|--- -->
| |LS:07DEC91 LF:16DEC91| | |
| |TF: 0 FF: 0 | | |
| ------------------------- | |
| | |
| | |
| | |--
| | |
| | |
------------------------- | ------------------------- | ------------------------- |
|Approve Plan Dur: 5| | |Write Specs Dur: 5| | |Prototype Dur:15| |
|ES:02DEC91 EF:06DEC91|--+->|ES:07DEC91 EF:11DEC91|---->|ES:17DEC91 EF:31DEC91|--+->
|LS:02DEC91 LF:06DEC91| | |LS:12DEC91 LF:16DEC91| |LS:17DEC91 LF:31DEC91| |
|TF: 0 FF: 0 | | |TF: 5 FF: 5 | |TF: 0 FF: 0 | |
------------------------- | ------------------------- ------------------------- |
| |
| |
| |
| |
| |
| ------------------------- ------------------------- |
| |Anal. Market Dur: 5| |Mkt. Strat. Dur:10| |
-->|ES:07DEC91 EF:11DEC91|---->|ES:12DEC91 EF:21DEC91|-----
|LS:06JAN92 LF:10JAN92| |LS:11JAN92 LF:20JAN92|
|TF:30 FF: 0 | |TF:30 FF:30 |
------------------------- -------------------------
|
------------------------- -------------------------
|Materials Dur:10| |Test Market Dur:15|
|ES:01JAN92 EF:10JAN92|--- -->|ES:21JAN92 EF:04FEB92|---
|LS:01JAN92 LF:10JAN92| | | |LS:21JAN92 LF:04FEB92| |
|TF: 0 FF: 0 | | | |TF: 0 FF: 0 | |
------------------------- | | ------------------------- |
| | |
| | |
---------------------------+-----------------------------| |
| | |
| | |
------------------------- | ------------------------- | ------------------------- |
|Facility Dur:10| | |Init. Prod. Dur:10| | |Evaluate Dur:10| |
|ES:01JAN92 EF:10JAN92|---->|ES:11JAN92 EF:20JAN92|--+->|ES:21JAN92 EF:30JAN92|---->
|LS:01JAN92 LF:10JAN92| |LS:11JAN92 LF:20JAN92| | |LS:26JAN92 LF:04FEB92|
|TF: 0 FF: 0 | |TF: 0 FF: 0 | | |TF: 5 FF: 5 |
------------------------- ------------------------- | -------------------------
|
|
|
|
|
| -------------------------
| |Marketing Dur: 0|
----------------------------------------------------------->|ES:21JAN92 EF:21JAN92|
|LS:10FEB92 LF:10FEB92|
|TF:20 FF:20 |
-------------------------
|
------------------------- -------------------------
|Changes Dur: 5| |Production Dur: 0|
|ES:05FEB92 EF:09FEB92|---->|ES:10FEB92 EF:10FEB92|
|LS:05FEB92 LF:09FEB92| |LS:10FEB92 LF:10FEB92|
|TF: 0 FF: 0 | |TF: 0 FF: 0 |
------------------------- -------------------------
|
|
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
