Start-to-Finish (SF) relationships say one task cannot conclude until the former task starts. Its application is limited, but it may fit well in the right scenario. Let’s take a look. The SF relationship specifies that a successor task cannot finish until its predecessor begins. It is difficult to find a scenario where the SF relationship […]
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Today we’re examining date and duration variances in P6. When your P6 Professional date or duration variance field is positive or negative, is that a good or bad sign? Let’s take a look. A P6 Professional baseline is like a static ruler used to measure distances. The baseline is a static picture of the schedule
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Finish-to-Finish (FF) relationships define how two tasks conclude in relation to each other. They are most helpful when a task cannot officially finish until another concurrent task crosses the finish line. Let’s take a look. The FF relationship dictates that a successor task cannot finish until its predecessor task concludes. A classic example is writing
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Sometimes a task cannot begin until another has started, but there is flexibility in how soon afterwards it may proceed. The good news is that the Start-to-Start (SS) relationship can model this scenario. Start-to-Start (SS) relationships link the start of a predecessor task to the start of a successor task. They are ideal when one
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Project success relies on schedule transparency. Finish-to-Start relationships (FS) drive schedule clarity. Let’s take a look. Quality schedules have a much higher probability of success. Of particular importance in schedule quality assessments are the relationships between activities. Activity relationships make schedules dynamic, so that the effects of schedule changes propagate throughout the schedule. This means
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Although milestones in Primavera P6 have zero duration and limited attributes, they play a vital role in tracking, controlling and communicating a project’s progress. Milestones are somewhat like trail markers on a hiking trail; they tell where you’ve been or where you are headed. In Primavera P6, milestones are tasks that have zero duration. While
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A common question we get is: What’s the difference between Total Float and Free Float? Primavera P6 calculates both automatically every time you run a schedule. While most schedulers prioritize Total Float, understanding Free Float unlocks flexibility for field operations. Schedulers gravitate to total float in P6 because it appears in the “classic” schedule layout
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Primavera P6 allows every activity to carry its own calendar and also every relationship lag to be evaluated against a different one. When your schedule mixes five-day, six-day, seven-day and shift calendars, the CPM (Critical Path Method) dates that come out are only correct if you understand which calendar P6 is using at each step
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A client wanted the Gantt chart to identify the remaining work performance period and mark the contract completion date. Here’s a look at how you do that. Curtains are static regions on the Gantt chart that are shaded to highlight the breadth of various time periods, such as permitting delays, acquisition delays, holiday shutdowns and
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Level of Effort (LOE) activities in P6 are pretty handy and sometimes not used by less experienced schedulers. If you set them up properly, they can give you a dynamic summary bar that automatically stretches from the earliest start to the latest finish of whatever work you connect to it. Once you know how P6
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