PowerSteeringPowerSteering User GuidesEnd User Guide Using Project CentralHow does the Enforced Sequential Gates (ESG) constraint affect a gated project schedule?

How does the Enforced Sequential Gates (ESG) constraint affect a gated project schedule?

Enforced Sequential Gates (ESG) is an attribute of a gated project work type. An ESG project is neither strictly manually or automatically scheduled, rather a mix of both. ESG is a unique scheduling type that is a good option when:

  • You want to have firm phase end dates, end dates that are manually set and then not updated based on changes to other end dates.
  • You want one phase to proceed directly to the next phase, the subsequent phase not starting before or more than a day after the end of an earlier phase.

This article describes how a gated project with ESG works.

1. Set Constraint End Dates

  • When creating a gated project with ESG selected, planned/constraint end dates for each phase are required.

2. ESG Project Characteristics

An ESG project has the following characteristics:

  • The planned/constraint start date can only be edited for the first phase.
  • Phase planned/constraint end dates are editable and only change when the user makes a direct change.
  • A change to the planned/constraint end date of one phase does not result in a change to the planned/constraint end date of another phase.
  • Changing a phase planned/constraint end date affects the duration of the next phase.
  • Other than the first phase, the phase planned/constraint start date is always one day following the previous phase planned/constraint end date.
  • For inactive ESG projects, system/scheduled dates are synchronized with planned/constraint end dates. When an ESG project has actual dates, the actual dates will be synchronized with system/scheduled dates.

Like all PowerSteering gated projects:

  • The first phase start date is synchronized with the project start date.
  • The last phase end date is synchronized with the project end date.

2.1. Scheduling Note

  • Note: If a phase has an actual start date but no actual end date and you edit the System/Scheduled End dates, the scheduler still compares it to the Planned/Constraint Start date. You may receive an error if you are trying to change the System/Scheduled End date to be a date which is earlier than the Planned/Constraint Start date. Modify the Planned/Constraint Start date if you want to change the System/Scheduled End date.

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