PROC CPM: ALIGNTYPE Statement :: SAS/OR(R) 9.22 User's Guide: Project Management

The CPM Procedure

ALIGNTYPE Statement

ALIGNTYPE variable ;

ALIGN variable ;

ATYPE variable ;

The ALIGNTYPE statement is used to specify whether the date value in the
ALIGNDATE statement is the earliest start date, the latest finish date, and so forth, for the activity in the observation. The values allowed for the variable specified in the ALIGNTYPE statement are specified in Table 4.18.

Table 4.18 Valid Values for the ALIGNTYPE Variable
Value	Type of Alignment
SEQ	Start equal to
SGE	Start greater than or equal to
SLE	Start less than or equal to
FEQ	Finish equal to
FGE	Finish greater than or equal to
FLE	Finish less than or equal to
MS	Mandatory start equal to
MF	Mandatory finish equal to

If an ALIGNDATE statement is specified without an ALIGNTYPE statement, all of the activities are assumed to have an aligntype of SGE. If an activity has a nonmissing value for the ALIGNDATE variable and a missing value for the ALIGNTYPE variable, then the aligntype is assumed to be SGE. See the section Time-Constrained Scheduling for information about how the ALIGNDATE and ALIGNTYPE variables affect project scheduling.

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