Primavera P6<\/a>\u00a0involves identifying the sequence or network logic in which your activities should occur.\u00a0 The network logic is strategic in the calculation of a Critical Path Method schedule, which is calculated based upon the activity durations and network logic (predecessor\/successor relationships).\u00a0 The schedule\u2019s early dates are calculated during the \u201cforward\u201d pass and the late dates are calculated during the \u201cbackward\u201d pass.\u00a0 The \u201coptimized\u201d project plan becomes the basis for the \u201cbaseline\u201d or target plan, which is utilized for performance measurement.\u00a0 This blog and Primavera P6 Training tutorial demonstrate the options for calculating the schedule when activities occur \u201cout of sequence\u201d thereby violating the network.<\/p>\n\u00a0<\/p>\n
Retained Logic Versus Progress Override<\/h3>\n
The Primavera P6\u00a0Schedule Options<\/em>\u00a0dialog box enables users to select between\u00a0Retained Logic<\/em>,\u00a0Progress Override<\/em>, and\u00a0Actual Dates<\/em>\u00a0to identify how Primavera P6 will schedule progressed activities.\u00a0 The video below demonstrates both Retained Logic and Progress Override options.<\/p>\nWhen using\u00a0Retained Logic<\/b>, the activity that starts out of sequence cannot finish until it\u2019s predecessor has finished. The remaining duration of the out of sequence activity will be scheduled to begin after the predecessor is scheduled to finish.\u00a0 Retained Logic respects the network logic.<\/p>\n
When scheduling using\u00a0Progress Override<\/b>, Primavera P6 ignores the relationship between the activities and schedules any remaining duration of the \u201cout of sequence\u201d activity from the data date.<\/p>\n
The Primavera P6 Training Tutorial video below demonstrates\u00a0scheduling the remaining duration of \u201cout of sequence\u201d activities using both Retained Logic and Progress Override.<\/p>\n
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![\"project_schedule_fs\"](\"http:\/\/primaveratrainingblog.mssprojectsanalytics.com\/wp-content\/uploads\/2013\/10\/project_schedule_fs.png\")
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