Page 216 -

6 - PROJECT TIME MANAGEMENT

6.7.2.5 Leads and Lags

Adjusting leads and lags is applied during network analysis to find ways to bring project activities that are
behind into alignment with the plan. For example, on a project to construct a new office building, the landscaping
can be adjusted to start before the exterior work of the building is complete by increasing the lead time in the
relationship. Or, a technical writing team can adjust the start of editing the draft of a large document immediately
after the document is completed by eliminating or decreasing lag time.

6.7.2.6 Schedule compression

Described in Section 6.6.2.7. Schedule compression techniques are used to find ways to bring project activities
that are behind into alignment with the plan by fast tracking or crashing schedule for the remaining work.

6.7.2.7 Scheduling tool

Schedule data is updated and compiled into the schedule model to reflect actual progress of the project and
remaining work to be completed. The scheduling tool (Section 6.6.2.8) and the supporting schedule data are used
in conjunction with manual methods or other project management software to perform schedule network analysis
to generate an updated project schedule.

6.7.3 control Schedule: outputs

6.7.3.1 Work Performance Information

The calculated SV and SPI time performance indicators for WBS components, in particular the work packages
and control accounts, are documented and communicated to stakeholders.

6.7.3.2 Schedule Forecasts

Schedule forecasts are estimates or predictions of conditions and events in the project’s future based on
information and knowledge available at the time of the forecast. Forecasts are updated and reissued based on
work performance information provided as the project is executed. The information is based on the project’s past
performance and expected future performance, and includes earned value performance indicators that could
impact the project in the future.

190 ©2013 Project Management Institute. A Guide to the Project Management Body of Knowledge (PMBOK Guide) – Fifth Edition
®

Licensed To: Jorge Diego Fuentes Sanchez PMI MemberID: 2399412
This copy is a PMI Member benefit, not for distribution, sale, or reproduction.