The CPM Procedure

This example illustrates the use of the project finish date (using the FBDATE= option) to specify a deadline on the project. In the following program it is assumed that the project data are saved in the data set WIDGAOA. PROC CPM is first invoked with the FBDATE= option. Output 4.3.1 shows the resulting schedule. The entire schedule is shifted in time (as compared to the schedule in Output 4.2.2) so that the end of the project is on March 1, 2004. The second part of the program specifies a project start date in addition to the project finish date using both the DATE= and FBDATE= options. The schedule displayed in Output 4.3.2 shows that all of the activities have a larger float than before due to the imposition of a less stringent target date.

proc cpm data=widgaoa
         fbdate='1mar04'd interval=day;
   tailnode tail;
   headnode head;
   duration days;
   id task;
   run;

proc sort;
   by e_start;
   run;

title 'Meeting Project Deadlines';
title2 'Specification of Project Finish Date';
proc print;
   id task;
   var e_: l_: t_float f_float;
   run;

proc cpm data=widgaoa
         fbdate='1mar04'd
         date='1dec03'd interval=day;
   tailnode tail;
   headnode head;
   duration days;
   id task;
   run;

proc sort;
   by e_start;
   run;

title2 'Specifying Project Start and Completion Dates';
proc print;
   id task;
   var e_: l_: t_float f_float;
   run;