TABLE OF CONTENTS Constraints are used to imposelogic on activities that may not be realistically scheduled with logic links. This chapter willdeal with the following constraints in detail:
Start On or After
Finish On or Before
These are the minimum number of constraints that are required to effectively schedule aproject.
Start On or After (also known as an Early Start or StartNo Earlier Than constraint) is used when the start date of an activity is known and does not havea predecessor. Primavera Version 4.1 will not calculate the activity early start date prior to thisdate.
Finish On or Before (also known as Late Finish or FinishNo Later Than constraint) is used when the latest finish date is stipulated. Primavera Version 4.1will not calculate the activity s late finish date after this date.
The following table summarizes the methods used to assign Constraints to Activities or how toadd notes to activities:
| Topic | Notes for Creating a Constraint |
|---|---|
| Open the Status tab on the ActivityDetails form. |
| The following columns may be displayed and the constraints assigned or edited:
|
| The Activity Details form has a Notebook tab, which enables Notes to be assigned to Notebook Topics. |
Primavera Version 4.1 will permit two constraints against a given activity. P3 and SureTrakalso allow two constraints but Microsoft Project only permits one.
