Prepare Schedule Updates

An update may combine recorded progress and forecasts. Where information is missing, inconsistent or revised, a later analysis may consider other project records and explain the basis and limitations of any reconstruction.

Updates may record actual dates, remaining durations, progress and logic revisions. Their content, timing and supporting records affect their use in project administration or later analysis.

Updates may be used for current forecasts and as part of the record of project progress. Differences between recorded facts, estimates and later revisions can be considered in context.

Actual dates not recorded in schedule updates can often be reconstructed forensically from the project record, including daily reports, pay applications, meeting minutes, correspondence and photographs. Reconstruction often involves additional effort, and its reliability depends on the completeness and quality of the available records.

Logic revisions may affect calculated dates and the interpretation of progress. Analysts may consider what changed, its timing, supporting reasons, significance and other available records.

A series of updates may help explain changes in progress, logic and forecasts over time. Where updates are incomplete, other project records may contribute to the analysis.