PMA Publishes Core Traits of a Reliable Schedule

Detroit, MI (March, 2014) – CEO and founder of PMA Consultants, Dr. Gui Ponce de Leon, PE, PMP, LEED AP, with contributions from other PMA scheduling experts, has authored and released a new publication entitled Core Traits of a Reliable Schedule. This publication endeavors to codify the essential elements of a reliable schedule into a comprehensive protocol. Core Traits of a Reliable Schedule contemplates CPM and GPM (graphical path method) schedules and further highlights that a comprehensive, credible, well-constructed, and controlled (seen as the four corners of a reliable schedule) schedule captures the notion of a great schedule.

The world of construction scheduling, as we know it, has been practiced for more than 50 years. Stakeholders responsible for delivering a project expect a great—not just a good—schedule, one that is authored, understood, and followed by key stakeholders. This ideology has given rise to a new protocol, Core Traits of a Reliable Schedule. This publication introduces and builds upon other recent works on best practices for preparing schedules, including the GAO Schedule Assessment Guide (United States Government Accountability Office, 2012) and CPM in Construction Management (O’Brien & Plotnick, 2010).

In discussing the new publication, Dr. Gui states, “While the practice of scheduling has advanced significantly during that time, advances in best practices and excellence in preparing schedules have not translated into comparable guidance for reviewing contractor schedule deliverables.”

Core Traits of a Reliable Schedule is aimed at codifying schedule submittal established and emerging best practices for the benefit of scheduling practitioners who are engaged with…

  • owners;
  • owner’s project manager organizations;
  • consultants reviewing schedules for the owner; and
  • contractors/construction managers submitting schedules for owner review

You can purchase the full publication at